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公开(公告)号：JP2003153565A
公开(公告)日：2003-05-23
申请号：JP2001345764
申请日：2001-11-12
Applicant: NAT AEROSPACE LAB , JAPAN SCIENCE & TECH CORP
Inventor： SHINNO MASAYUKI , KIZARA KATSUHITO , MORO AKIO , FUJITA KAZUHISA , NAKANO MASAKATSU
IPC: H01L31/042 , H01L31/054 , H01L35/32 , H01S3/00 , H02J50/00 , H02J50/30 , H02J50/50 , H02N11/00 , H02J17/00
Abstract: PROBLEM TO BE SOLVED: To provide a system where power as energy required for controlling a laser optical system is generated within the optical system, without having to depend on an external supply by making effective use of laser energy leaking from the laser optical system, which conventionally has merely been a loss. SOLUTION: In the power generation system using energy leaking from the laser optical system, a translucent-type reflector is deliberately used, and solar cells are placed behind the reflector. Thus, the energy of laser light, passing through, is used to generate power. The amount of electricity generated is adjusted, by varying the permeability of the reflector to vary the amount of energy which reaches the solar cells. At this time, a photoelectric element, corresponding to the wavelength of the laser is selected and used. Thus, energy can be extracted at high conversion efficiency. Further, thermoelectric elements are caused to generate electricity, utilizing heat emitted from the laser optical system.
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公开(公告)号：JPH11220184A
公开(公告)日：1999-08-10
申请号：JP7511698
申请日：1998-02-02
Applicant: NAT AEROSPACE LAB
Inventor： TANJI YASUNORI , MORIYA SHINICHI , SHINNO MASAYUKI , KUMAGAI TATSUO , KIZARA KATSUHITO
Abstract: PROBLEM TO BE SOLVED: To simplify structure, to reduce the number of item parts, and at the same time to increase thermoelectric conversion efficiency. SOLUTION: A thermoelectric conversion element 31 consisting of a thermoelectric conversion material is sandwiched between metal segments 41 to 43 that face opposite to each other, and the metal segments 41 to 43 are connected to the thermoelectric conversion element 31 by a fixing screw 34. The through- hole of the fixing screw 34 is formed in the metal segments 41 and 42 that face opposite to each other, a through-hole 35 of the fixing screw 34 is formed at the center part of the thermoelectric conversion element 31, and furthermore a screw hole 37 for screwing to the tip of the fixing screw 34 is formed in the metal segment 43. Then, the fixing screw 34 is inserted into the through-hole of one of metal segments 41 and 42 and the through-hole of the thermoelectric conversion element 31, the tip part is screwed to the screw hole 37 of the segment 43, and the thermoelectric conversion element 31 is arranged between the metal segments which face opposite to each other for connection.
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公开(公告)号：JP2003134700A
公开(公告)日：2003-05-09
申请号：JP2001330673
申请日：2001-10-29
Inventor： SHINNO MASAYUKI , KIZARA KATSUHITO , MORO AKIO , YANAI TETSUO , FUJITA KAZUHISA , IMAZAKI KAZUO , NAKANO MASAKATSU
Abstract: PROBLEM TO BE SOLVED: To solve environmental problems caused by the conventional power generation method by use of natural solar energy, and to provide a system to supply solar energy from a remote place to a place of consumption efficiently. SOLUTION: In this energy supply network which uses solar light pumped laser, means of generating a solar light pumped laser which can absorb energy of a wide band spectrum and oscillate it as laser is installed at a location easy to secure space such as in outer space. The laser enables to transmit energy to a remote distance efficiently as highly directional laser by reflecting, controlling and transmitting to the destination at a facility outside the earth such as satellites stationed at places in the network. In the area where laser absorption loss is large due to the atmosphere, the laser is irradiated to an airship floating in the stratosphere, converted to microwave on the airship, and transmitted to the power network on the ground.
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公开(公告)号：JPH1074986A
公开(公告)日：1998-03-17
申请号：JP18314697
申请日：1997-06-24
Applicant: NAT AEROSPACE LAB
Inventor： NODA YASUTOSHI , KOU ENSEI , KIZARA KATSUHITO , KUMAGAI TATSUO , TANJI YASUNORI , CHIN RITSUTOU , SHINNO MASAYUKI , TADA YASUO
Abstract: PROBLEM TO BE SOLVED: To obtain highly reliable thermoelectric elements for low, intermediate and high temperatures having long service life by performing discharge plasma sintering, while pressing a thermoelectric semiconductor material against an electrode material thereby integrating a thermoelectric conversion element body and an electrode. SOLUTION: A metal plate or a metal powder electrode material 6 composing one electrode of a thermoelectric conversion element, a powdery thermoelectric semiconductor material 5 composing a thermoelectric conversion element body, and the metal plate or metal powder electrode material 6, composing the other electrode of the thermoelectric conversion element are arranged sequentially on a lower punch 4 in the cavity 1 of a die 2. Both upper and lower punches 3, 4 are then pressed to compress the electrode material 6 and the thermoelectric semiconductor material 5. Under that state, a high current is conducted between the upper and lower punches 3, 4 in order to perform discharge plasma sintering, thus integrating the electrode material 6 and the thermoelectric semiconductor material 5. According to the method, highly reliable thermoelectric elements for low, intermediate and high temperatures, having long service life can be obtained.
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公开(公告)号：JPH08316533A
公开(公告)日：1996-11-29
申请号：JP14688695
申请日：1995-05-23
Applicant: NAT AEROSPACE LAB
Inventor： SUDO TAKAYUKI , CHIN RITSUTOU , KIZARA KATSUHITO , KUMAGAI TATSUO
Abstract: PURPOSE: To provide a thermoelectric element performance evaluation method and a device, wherein a one-dimensional heat flow condition can be realized so as to accurately evaluate the performance of a thermoelectric element of gradient structure under a condition of large temperature difference. CONSTITUTION: A thermoelectric element arranged between a primary heat source 2 and a cooling source to measure a thermoelectromotive force or the like is surrounded with a heat shield 7, and an auxiliary heat source 3 is provided to heat the outside of the heat shield 7 from across so as to make the temperature distribution of the heat shield 7 nearly equal to a temperature distribution induced in the thermoelectric element due to a temperature difference between the primary heat source 2 and the cooling source. A temperature distribution around the thermoelectric element is set nearly equal to that of the element, whereby the thermoelectric element is kept under a condition of one-dimensional heat flow.
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Patent Agency Ranking
公开(公告)号：JP2003148247A
公开(公告)日：2003-05-21
申请号：JP2001345769
申请日：2001-11-12
Applicant: NAT AEROSPACE LAB , JAPAN SCIENCE & TECH CORP
Inventor： SHINNO MASAYUKI , KIZARA KATSUHITO , MORO AKIO , FUJITA KAZUHISA , V KMETIK , NAKANO MASAKATSU
Abstract: PROBLEM TO BE SOLVED: To provide a system capable of easily adjusting a laser irradiation position to a propellant without receiving restrictions of a positional relation with a laser source for laser transmission and an installation place of a member in a laser propulsion system provided with advantageous conditions as a thrust generator used in a space structure. SOLUTION: A laser thruster system is composed of a laser oscillator, a flexible optical cable transmitting laser from the laser oscillator to a desired section, and a plasma injection device installed in a desired section. The plasma injection device has a simple structure having no movable part constituted of an injection nozzle having a megaphone shape, a condensing lens provided in a mouth application part of the nozzle, and a solid propellant storage part provided continuously behind the mouth application part. Moreover, the system is mounted in a space structure and a plurality of plasma injection devices are arranged to obtain a large propulsion force, and are arranged in desired sections to control an attitude and position in a desired direction.
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公开(公告)号：JP2001052526A
公开(公告)日：2001-02-23
申请号：JP22252799
申请日：1999-08-05
Applicant: NAT AEROSPACE LAB
Inventor： TANJI YASUNORI , KIZARA KATSUHITO , KUMAGAI TATSUO , MORIYA SHINICHI , SHINNO MASAYUKI
Abstract: PROBLEM TO BE SOLVED: To provide an inexpensive electric insulating coating film material excellent in heat resistance, heat transmittance and heat resistance strain characteristics in use at normal temperatures of 200-500 deg.C, in which an electric insulating coating film is formed at a heat treatment temperature of 500 deg.C or lower. SOLUTION: In a fabricating method, an electric insulating coating film material including a mixture 4 composed of composite glass powder containing water lass, PbO or the like and electric insulating powder is applied onto a metal substrate 2, followed by drying and heating, thereby causing a thermal oxidation reaction. Thus, an electric insulating coating film 7 consisting of an electric insulating oxide layer 5 and a glass-based coating film 6 is formed on the metal substrate.
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公开(公告)号：JPH11220182A
公开(公告)日：1999-08-10
申请号：JP3552598
申请日：1998-02-02
Applicant: NAT AEROSPACE LAB
Inventor： TANJI YASUNORI , MORIYA SHINICHI , SHINNO MASAYUKI , KUMAGAI TATSUO , KIZARA KATSUHITO
IPC: B23K35/28 , H01L23/373 , H01L35/08
Abstract: PROBLEM TO BE SOLVED: To enable shifting at joint face, and perform electric and thermal coupling closely, by constituting a union medium 3 by such composition that the liquid-form metal and solid-phase metal show coexistence phase at all times, within the heating temperature range of a material to be jointed, that the quantity of solid solution changes, according to the temperature change, and that the fusing point changes gradually. SOLUTION: A jointing medium 3 is used for the union in the case where the fellow materials 1 and 2 to be joined different in thermal expansion coefficient are given different temperatures, or in such a like case. The jointing medium 3 is of such composition that the liquid-phase metal and the solid-phase metal show two-phase coexistence phase at all times in the temperature region from the room temperature (20 deg.C) to about 600 deg.C. It has a composition of including Gax Int-x and at least one hand of MA and MB. Here, x is a 0.1
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公开(公告)号：JPH1131835A
公开(公告)日：1999-02-02
申请号：JP18664397
申请日：1997-07-11
Applicant: NAT AEROSPACE LAB , SHINNO MASAYUKI , KIZARA KATSUHITO , MITSUBISHI HEAVY IND LTD
Inventor： SHINNO MASAYUKI , KIZARA KATSUHITO , NAKAJIMA SHOJI , MATSUBAYASHI MASAYUKI
IPC: H01L31/04 , H01L31/042 , H01L35/28
Abstract: PROBLEM TO BE SOLVED: To enhance the solar heat utilization efficiency significantly by arranging a wavelength selection reflecting/transmitting film on the surface of a solar cell and arranging a thermoelectric power generation element and a heat exchanger oppositely to the solar cell. SOLUTION: A parabolic condenser 10 arranged to face the sun is provided, on the surface thereof, with a wavelength selection reflecting/transmitting film 8 transmitting a light of specified wavelength for generating power through a solar cell 1 selectively and reflecting other light. A solar cell 1 is arranged on the rear surface of the wavelength selection reflecting/transmitting film 8 and a heat exchanger 3A is arranged on the rear surface of the solar cell 1 in order to cool them. On the other hand, a thermoelectric power generation element 2 receiving the reflected light from the wavelength selection reflecting/ transmitting film 8 and a heat exchanger 3B for cool them are arranged oppositely to the condenser 10. According to the arrangement, the solar heat utilization efficiency can be enhanced significantly.
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公开(公告)号：JPH1022534A
公开(公告)日：1998-01-23
申请号：JP18675196
申请日：1996-06-27
Applicant: NAT AEROSPACE LAB
Inventor： TANJI YASUNORI , NODA YASUTOSHI , KUMAGAI TATSUO , KIZARA KATSUHITO , KOU ENSEI , SHINNO MASAYUKI , TADA YASUO
Abstract: PROBLEM TO BE SOLVED: To enable a base material to be doped with impurities surely at a required doping amount, that is, with good controllability uniformly by making impurities react on a constituent element of a base material once to be a compound and adding and dispersing it to a base material. SOLUTION: High frequency current is supplied to a high frequency coil 2 and the coil is heated. In the process, at first, it is heated at a temperature which is lower than a fusing point of a base material 5 and higher than a fusing point of impurities 4. A compound Na2 Te is produced by making Na of the impurity element material 4 and Te of a base material react in this way. Oxidizing property of the compound is greatly weak when compared with Na only and becomes a stable substance. Then, heating of a high temperature is carried out. The high temperature heating is carried out at a temperature which is higher than a fusing point of Pb and Te of a base material for dissolving all the raw material inside a crucible 1 and contents inside the crucible 1 are fully agitated and mixed while the high temperature heating is maintained. Thereby, impurities of Na can be dispersed uniformly and entirely into a base material of PbTe.
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