PRINTER, PRINTER HEAD AND METHOD OF MAKING PRINTER HEAD

    公开(公告)号:JP2002144572A

    公开(公告)日:2002-05-21

    申请号:JP2000344233

    申请日:2000-11-07

    Applicant: SONY CORP

    Abstract: PROBLEM TO BE SOLVED: To bond an orifice plate sufficiently in close contact by adopting this method to a printer, particularly, in a type of ejecting ink drops by heating a heater in terms of the printer, a printer head and a method of making the printer head. SOLUTION: Wiring patterns 32A, 32B, 32C are disposed on a portion under a partition wall (13) in an ink liquid chamber. A step in a thickness direction is not formed at the partition wall (13) of at least the ink liquid chamber 16.

    MAGNETO-OPTICAL RECORDING MEDIUM
    73.
    发明专利

    公开(公告)号:JP2001093201A

    公开(公告)日:2001-04-06

    申请号:JP2000268922

    申请日:2000-09-05

    Applicant: SONY CORP

    Abstract: PROBLEM TO BE SOLVED: To obtain sufficient reproduction output and consequently to improve a signal-to-noise ratio (carrier-to-noise ratio) even when recording information bits are microminiaturized by solving the problem of the restriction on the recording density regulated from conditions at reproduction. SOLUTION: The magneto-optical recording medium which executes reading out of recording information by the magneto-optical interaction in the recording magnetic domains of a laser beam and magnetic films by irradiating the magnetic films with the laser beam has at least the first magnetic film 11 and the third magnetic film 13 and the second magnetic film 12 arranged between these magnetic films 11 and 13. The second magnetic film 12 consists of the magnetic film lower in Curie temperature than the first magnetic film 11 and the third magnetic film 13. The coercive force Hc1 of the first magnetic film 11 is sufficiently smaller near the Curie temperature Tc1 of the second magnetic film 12 and the coercive force Hc3 of the third magnetic film 13 is selected at the magnitude at which the magnetization state may be held in a range up to a reproduction temperature TpB hither than the Curie temperature Tc2 of the second magnetic film 12 from room temperature TRT.

    RECORDER AND MANUFACTURE THEREOF
    75.
    发明专利

    公开(公告)号:JPH11291531A

    公开(公告)日:1999-10-26

    申请号:JP9188298

    申请日:1998-04-03

    Applicant: SONY CORP

    Abstract: PROBLEM TO BE SOLVED: To suppress variation of resistance values and to obtain a high quality image by a constitution wherein a resistor heating means for heating and ejecting a recording medium held on a transferring section to transfer it to a transferring body consists of a high resistance section provided adjacent to a low resistance section and electrodes for energizing the high resistance section are connected to the low resistance section. SOLUTION: In a printer head 100, a polysilicon film is formed on a top face of a substrate 9 made of a silicon with a silicon oxide film as a heat insulation layer 10 therebetween. The polysilicon film consists of a high resistance section 2 as a heater and a plurality of low resistance sections 3b, 3a which are respectively connected to a common electrode 5 and an individual electrode 4 which are formed of wiring patterns. An SiO2 layer is formed on the top face of the polysilicon film to be a protection film 12. A plurality of opening sections 28a, 28b for electrically connecting each of the low resistance sections 3a, 3b to each of the electrodes 4, 5 are formed. The high resistance section 2 selected by each of the electrodes 4, 5 is heated in accordance with image information to be printed, then ink is ejected and the recording is performed.

    RECORDING METHOD AND RECORDER
    76.
    发明专利

    公开(公告)号:JPH11286105A

    公开(公告)日:1999-10-19

    申请号:JP8903098

    申请日:1998-04-01

    Applicant: SONY CORP

    Abstract: PROBLEM TO BE SOLVED: To provide a recording method and a recorder superior in transferring efficiency such as transferring sensitivity and transferring speed. SOLUTION: Ink 5 held at a transferring section 1a is ejected by being heated by a heater 4 so as to be transferred to a transferring medium provided in opposition to the transferring section 1a. At that time, a surface tension inclination and/or an interfacial tension inclination is created on the surface of the recording medium 5 by the heating, then the recording medium 5 is ejected in an ink mist 6 by utilizing Marangoni flow of the recording medium 5 created thereby.

    MAGNETO-OPTICAL RECORDING MEDIUM
    77.
    发明专利

    公开(公告)号:JPH09171645A

    公开(公告)日:1997-06-30

    申请号:JP33591096

    申请日:1996-12-16

    Applicant: SONY CORP

    Abstract: PROBLEM TO BE SOLVED: To improve sufficient reproduced output and, therefore, S/N(C/N) even in the case recording information bits are miniaturized by solving the problems of the restriction on the recording density regulated by the conditions at the time of reproduction by the conventional method. SOLUTION: Magnetic films composed of at least a record holding magnetic film 13 and a signal reproducing magnetic film 11 which are magnetically coupled to each other at room temp. are formed on this recording medium S. The reading out of recorded information is executed by the magneto-optical interaction of a laser beam and the signal reproducing magnetic film in the state of changing the magnetization state of the temp. rising part of the magnetic film from the state before the irradiation with the laser beam by applying the temp. rise to these magnetic films by the irradiation of the magnetic films with the laser beam.

    BLOCH LINE MEMORY DEVICE
    78.
    发明专利

    公开(公告)号:JPH01194187A

    公开(公告)日:1989-08-04

    申请号:JP1938688

    申请日:1988-01-29

    Applicant: SONY CORP

    Abstract: PURPOSE:To prevent a transfer error and to enlarge a transfer margin by converting the code of information to be stored in a Bloch line memory and preventing a main Bloch line pair from being successively formed at the time storing the information in a minor loop. CONSTITUTION:In a converting means 4, when for instance, 5 bits are converted to 8 bits, since 32 combinations are considered in the information of inputted 5 bit information, the 32 combinations of the 8 bit information outputted correspondingly thereto are prepared. At this time, there are 256 combinations in the 8 bit information and the minus Bloch line pair is nor successively formed, namely, there are 34 combinations in which '1' does not continue, so that the 32 combinations are selected. In such a way, a converted bit pattern is stored in a second storing means 5 and read to store in the minor loops 631-63m of the Bloch line memory 6. Thereby, an information part low in the transfer speed is not present to prevent the transfer error and enlarge the transfer margin.

    SIGNAL REPRODUCING METHOD FOR MAGNETO-OPTICAL RECORDING MEDIUM

    公开(公告)号:JPH01143041A

    公开(公告)日:1989-06-05

    申请号:JP30192287

    申请日:1987-11-30

    Applicant: SONY CORP

    Abstract: PURPOSE:To obtain a satisfactory reproducing characteristic by enlarging and reproducing the recording magnetic block of a first magnetic film in a recording medium to have first, second and third magnetic films, in which a Curie temperature and coercive force are caused to have specified relation. CONSTITUTION:A dielectric film 2 is formed on an optical transmitting substrate 1 and the respective vertical magnetizing films of first-third magnetic films 11-13 are formed on the film. When the Curie temperature of those films and an indoor temperature are obtained as TC1-TC3 and a TRT, the condition of TC2>TRT, TC2

    BLOCH LINE MEMORY
    80.
    发明专利

    公开(公告)号:JPS6488990A

    公开(公告)日:1989-04-03

    申请号:JP24501587

    申请日:1987-09-29

    Applicant: SONY CORP

    Abstract: PURPOSE:To surely execute the respective operation of writing/reading, replication and erasing by surely generating a vertical Bloch line-VBL at the end part of a desired magnetic domain after a chopping margin in a state obtaining the big chopping margin. CONSTITUTION:A minor loop ML consisting of the magnetic wall of the stripe magnetic domain formed on the vertical magnetizing film 11 of a Bloch line memory storing a signal is formed. Then, at the one end of the loop ML, a first gate part 21 for writing or reading is disposed and a second gate part 22 for erasing is disposed at the other end. A chopping conductor 4 consisting of a pair of parallel conductor 4a and 4b is formed at the respective gates 21 and 22 and the conductors 4a and 4b are inversely charged. Besides, the positional relation of the loop ML and the gates 1 and 22 is selected so as to orient the direction of an in-plane magnetic field along the film plane of the magnetizing film 11 made by the conductor 4a or 4b at the loop ML side toward the direction of magnetization in the magnetic wall of the chopping conductor 4.

Patent Agency Ranking