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1.发明专利
公开(公告)号：JP2004302444A
公开(公告)日：2004-10-28
申请号：JP2004067716
申请日：2004-03-10
Applicant: Yamaha Corp , ヤマハ株式会社
Inventor： IIJIMA KENZABURO , MOCHIZUKI OSAMU
IPC: G02B6/24
Abstract: PROBLEM TO BE SOLVED: To provide an optical fiber positioning plate and an optical fiber array in which position of an optical fiber positioning hole is not changed by temperature fluctuation, corrosion resistance is superior and manufacturing is conducted at low cost in good yield and to provide an optical fiber positioning method.
SOLUTION: Optical fiber positioning plates 3a and 3b are flat plates made of metallic materials including at least iron and nickel, have optical fiber positioning through-holes G11 to G88 and H11 to H88 and include 0.5 to 6 mass % chromium. An optical fiber array 1 is provided with the plates 3a and 3b and optical fibers F11 to F88 are inserted into the holes G11 to G88 and H11 to H88 and fixed.
COPYRIGHT: (C)2005,JPO&NCIPI-
2.发明专利
公开(公告)号：JP2004274072A
公开(公告)日：2004-09-30
申请号：JP2004130347
申请日：2004-04-26
Applicant: Yamaha Corp , ヤマハ株式会社
Inventor： ONOE KATSUHIKO , TAKEUCHI NANAYUKI , HOSHI TOSHIHARU , IIJIMA KENZABURO
Abstract: PROBLEM TO BE SOLVED: To provide a substrate for a thermoelectric module that can prevent detachment from taking place in the interface between a metal substrate and an insulating film, even if a heat cycle or a thermal shock is added, by forming unevennesses on the metal substrate, forming a stress relaxation film between the metal substrate and the insulating film, and further, forming the insulating film and the stress relaxation film in divided sections, as well as the manufacturing method for the substrate and a thermoelectric module. SOLUTION: An insulating film 4 is formed on a substrate 2, where unevenness is formed on its surface 3, and an electrode 6 is formed on the insulating film 4. At this time, the insulating film 4 is impregnated with an organic or inorganic material, such as epoxy resin, silicone, SiO 2 . COPYRIGHT: (C)2004,JPO&NCIPI
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公开(公告)号：JP2001176098A
公开(公告)日：2001-06-29
申请号：JP35203499
申请日：1999-12-10
Applicant: YAMAHA CORP
Inventor： MIURA MICHIO , WACHI MASATADA , HOSHI TOSHIHARU , IIJIMA KENZABURO
IPC: G11B7/09
Abstract: PROBLEM TO BE SOLVED: To provide an actuator which can surely move the position of an object such as a laser diode, an optical axis controller which can surely move to remove an offset the optical axis position of an exit light such as the laser beam, and its optical pickup. SOLUTION: A material whose thermal conductivity is within the range of 60 (W/(m. deg.C)) to 75 (W/(m. deg.C)) and whose Young's modulus is at least >=180×109 (N/m2) is used for a holding member 16 for holding the laser diode 3. Bimetal BM1-BM4 and Peltier elements P1-P4 are arranged in the lower part of the holding member 16 and the Peltier elements P1-P4 are controlled based on an offset signal which is generated by the light receiving result of a photodetector so that the holding member 16 is inclined by the thermal deformation of the bimetal BM1-BM4.
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公开(公告)号：JP2000349353A
公开(公告)日：2000-12-15
申请号：JP2000101080
申请日：2000-04-03
Applicant: YAMAHA CORP
Inventor： HAYASHI TAKAHIRO , IIJIMA KENZABURO
Abstract: PROBLEM TO BE SOLVED: To facilitate a countermeasure to automation of a wiring work at the time of installing this device on a module for optical communication, and to set this device at a narrow place, and to make it hard to disconnect or peel a lead. SOLUTION: This Peltier module 10 is constituted of a plurality of Peltier elements 1, electrodes 2 arranged at both edges of each Peltier element 1 for electrically and serially connecting the Peltier elements 1, a pair of substrates arranged through the electrodes 2 so that the plurality of Peltier elements 1 can be interposed, and an electrode 5 for supplying currents for supplying currents to the electrodes 2. The electrode 5 for supplying currents is formed so as to be extended from the inner face of one substrate at whose side the electrode 2 is arranged to at least the outer face of the other substrate.
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公开(公告)号：JP2000258741A
公开(公告)日：2000-09-22
申请号：JP6090799
申请日：1999-03-08
Applicant: YAMAHA CORP
Inventor： SUZUKI TOSHINAO , YAMASHITA MASAYOSHI , IIJIMA KENZABURO
Abstract: PROBLEM TO BE SOLVED: To provide an aberration correcting element which has excellent characteristics such as a fast response speed, fine aberration correction, high reliability and is suitable for correcting spherical aberration, comatic aberration, etc., in an optical pickup. SOLUTION: Upper electrodes 3a-3m and a lower electrode 4 of this aberration correcting element are formed on both surfaces of a plate-like electro- optical material 2 made of PLZT, etc., respectively, and the lower electrode 4 has a contact earth pattern, and the upper electrodes 3a-3m have a purality of separate patterns for applying different voltages to the electro-optical material 2 according to the places. By means of this constitution, optical path differences are made to vary according to the places by electrically controlling the refractive index of the electrooptical material 2 and thus controlling a phase of incident light to correct the aberration.
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Patent Agency Ranking
公开(公告)号：JPH11146934A
公开(公告)日：1999-06-02
申请号：JP31513897
申请日：1997-11-17
Applicant: YAMAHA CORP
Inventor： KOSUGI KATSUHIKO , IIJIMA KENZABURO
IPC: A63B53/04 , A63B102/32
Abstract: PROBLEM TO BE SOLVED: To increase the repulsion characteristics for a ball when it is hit, improve a carry, and adjust a center of gravity position of a head and ball hitting sound easily by providing a plurality of long holes which are parallel mutually in a ball hitting part of the head molded by a metal powder injection molding means. SOLUTION: A head 1 of an iron club manufactured by a metal powder injection molding method is constituted in such a way that a ball hitting part 2 and a hosel part 3 are integrally formed by a metallic material such as, for example, titanium and titanium alloy and a recessed part 4 is formed on a back face 2b side thereof. Moreover, the ball hitting part 2 of the head 1 has a cross section of which wall thickness is gradually reduced from a top line 2A side on an upper side toward the vertical direction on a leading edge 2B side on a lower side. A plurality of long holes 5 which are along the horizontal direction are formed in parallel mutually across an interval in the vertical direction inside the ball hitting part 2. Moreover, a diameter of each long hole 5 is set in such a way that it is gradually reduced toward the leading edge 2B side on the lower side in accordance with the wall thickness form of the ball hitting part 2.
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公开(公告)号：JPH11114111A
公开(公告)日：1999-04-27
申请号：JP28051297
申请日：1997-10-14
Applicant: YAMAHA CORP
Inventor： ABE EIJI , KOSUGI KATSUHIKO , IIJIMA KENZABURO
IPC: A63B53/04 , A63B102/32
Abstract: PROBLEM TO BE SOLVED: To improve the flight distance of a ball at the time of ball driving and to increase a ball driving feeling and a ball driving sound by providing a dissimilar metal raw material softer than a metal base material on the face surface of the ball drive section of a head molded with a desired metal base material by a powder metal injection molding means. SOLUTION: A head 1 is manufactured by the powder metal injection molding method. The head 1 is made of a desired metal base material 20 of titanium (Ti) or a titanium alloy, and it is integrally formed with a ball drive section 2 and a hosel section 3. The back section 2b side corresponding to the face surface 2a of the ball drive section 2 is formed into a cavity shape by the formation of a recess 4, and the sole surface 2c side is formed into a thick swelled shape relatively wide in width. A dissimilar metal raw material 21 softer than the metal base material 20 is provided on the face surface 2a of the ball drive section 2 of the head 1, thus a cushioning property against the shock of a ball at the time of ball driving is applied to the face surface 2a.
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公开(公告)号：JPH11104284A
公开(公告)日：1999-04-20
申请号：JP27282597
申请日：1997-10-06
Applicant: YAMAHA CORP
Inventor： SUZUKI KATSUNORI , IIJIMA KENZABURO , HOSHI TOSHIHARU
IPC: A63B53/04 , A63B102/32
Abstract: PROBLEM TO BE SOLVED: To enable ultra-lower centroid and to improve the degree of freedom in designing in centroid position adjustment by forming the head ball hitting part of a club head of a high sp. gr. metallic material and forming a head hosel part of a low sp. gr. metallic material. SOLUTION: An iron club head 1 is formed by integrally joining the ball hitting part 2 consisting of the high sp. gr. metallic material, such as stainless steel, and the hosel part 3 consisting of the low sp. gr. metallic material, such as titanium alloy, with different kind metallic materials by a powder metal injection molding means. The head hosel part 3 is provided with a shaft insertion hole 4 into which a shaft is inserted and adhered. Plural lines of recessed grooves 5 for enhancing the strength of adhesion of the shaft are formed in a spiral or other form on the inner peripheral surface of this shaft insertion hole 4. According to such head 1, the ultra-lower centroid is made possible without the attachment of weight bodies and the position adjustment in the vertical direction of the head centroid G and a toe and heel side direction is easily executable. The degree of freedom in designing is increased.
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公开(公告)号：JPH08257175A
公开(公告)日：1996-10-08
申请号：JP11121996
申请日：1996-04-08
Applicant: YAMAHA CORP
Inventor： TSUCHIDA ATSUSHI , TSUCHIYA KAZUHIRO , HOSHI TOSHIHARU , IIJIMA KENZABURO
IPC: A63B53/04 , A63B102/32
Abstract: PURPOSE: To resolve the restriction of the weight of a head body while increasing the moment of inertia to enable the enlargement of a sweet spot. CONSTITUTION: A head body 10 is formed of a plurality of split parts made of metal sheet material and these split parts are combined with each other to form a hollow shell structure made of the plastically worked metal sheet material 11 having no rib structure on the inner surface of a face surface part 10a. The thickness t1 of the face surface part of the head body is set to 2-3.5mm, the longitudinal length (a) to 40mm or more, lateral length (b) to 70mm or more, the thickness t2 of a crown surface part 10b to 0.6-2mm, the thickness t3 of a sole surface part 10c to 1-3mm, the whole volume to 190cc or more, the upper limit of the whole weight to the maximum 210g and the moment of inertia to 3000g.cm or more while a value (moment of inertia/specific gravity of material) of the moment of inertia divided by the specific gravity of material is set to 400 or more.
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公开(公告)号：JPH0612264B2
公开(公告)日：1994-02-16
申请号：JP21179588
申请日：1988-08-26
Applicant: YAMAHA CORP
Inventor： IIJIMA KENZABURO , INOKI AKIHITO
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