Patents by Inventor Hiroki Ishida
Hiroki Ishida has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6782870Abstract: A load timer mechanism of a fuel injection pump includes a governor shaft, which is secured to a housing, and a governor sleeve, which is axially slidably supported around the governor shaft. The governor shaft includes a fuel relief passage, which is communicated with a low pressure side of the pump and has an outer opening in an outer peripheral surface of the governor shaft, and a first annular groove, which is recessed in the outer peripheral surface of the governor shaft such that the first annular groove is axially displaced from the outer opening. The governor sleeve includes a port, which extends between an outer peripheral surface and an inner peripheral surface of the governor sleeve, and a second annular groove, which is recessed in the inner peripheral surface of the governor sleeve such that the second annular groove is axially displaced from the port.Type: GrantFiled: September 24, 2003Date of Patent: August 31, 2004Assignee: Denso CorporationInventor: Hiroki Ishida
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Liquid-crystalline composition for printing inks, coatings and counterfeit-proof marking of articles
Publication number: 20040140451Abstract: The present invention relates to a liquid-crystalline composition which comprises, as componentsType: ApplicationFiled: December 24, 2003Publication date: July 22, 2004Applicant: BASF Drucksysteme GmbHInventors: Frank Meyer, Hiroki Ishida, Peter Schuhmacher, Horst Neumann -
Patent number: 6755180Abstract: A chamfering portion provided at an inlet corner of a port of an inside way-out in a governor shaft is effective to decrease energy loss of fuel flowing into the inside way-out to less than one half in comparison with that of a conventional art. A flow amount characteristic of the fuel into the inside way-out improves so that a hysteresis between a pump chamber pressure decrease characteristic on increasing a load (a retarding characteristic) and a pump chamber pressure increase characteristic on decreasing the load (an advancing characteristic) is lowered, resulting in securing a highly accurate control of fuel injection timing.Type: GrantFiled: December 16, 2002Date of Patent: June 29, 2004Assignee: Denso CorporationInventor: Hiroki Ishida
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Liquid-crystalline composition for printing inks, coatings and counterfeit-proof marking of articles
Patent number: 6733689Abstract: A liquid-crystalline composition contains, as components, a liquid-crystalline mixture containing at least one compound having two polymerizable groups and at least one compound having only one polymerizable group, and optional further additives. The liquid crystalline composition can be used for printing or coating substrates, in electro-optical components, for counterfeiting-proof marking of articles and for the production of films or coatings which selectively reflect light in the wavelength range from 250 to 1300 nm.Type: GrantFiled: August 10, 2001Date of Patent: May 11, 2004Assignee: BASF Drucksysteme GmbHInventors: Frank Meyer, Hiroki Ishida, Peter Schuhmacher, Horst Neumann -
Publication number: 20040060543Abstract: A load timer mechanism of a fuel injection pump includes a governor shaft, which is secured to a housing, and a governor sleeve, which is axially slidably supported around the governor shaft. The governor shaft includes a fuel relief passage, which is communicated with a low pressure side of the pump and has an outer opening in an outer peripheral surface of the governor shaft, and a first annular groove, which is recessed in the outer peripheral surface of the governor shaft such that the first annular groove is axially displaced from the outer opening. The governor sleeve includes a port, which extends between an outer peripheral surface and an inner peripheral surface of the governor sleeve, and a second annular groove, which is recessed in the inner peripheral surface of the governor sleeve such that the second annular groove is axially displaced from the port.Type: ApplicationFiled: September 24, 2003Publication date: April 1, 2004Applicant: DENSO CORPORATIONInventor: Hiroki Ishida
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Patent number: 6634812Abstract: An optical bus system comprising an optical bus is furnished, along two opposed edges, with a plurality of signal light input/output portions for inputting and outputting signal light to and from the bus. Any one of the signal light input/output portions on one edge of the bus inputs signal light thereto and propagates the light to the opposite edge at which another signal light input/output portion outputs the propagated signal light from the bus. The system also comprises a plurality of light emitting/receiving circuits corresponding to the signal light input/output portions. Each light emitting/receiving circuit has a signal light sending unit and a signal light receiving unit. The signal light sending unit generates signal light and sends the generated signal light into the optical bus through the corresponding signal light input/output portion. The signal light receiving unit acquires a received light signal upon receipt of the signal light output by the corresponding signal light input/output portion.Type: GrantFiled: August 30, 2001Date of Patent: October 21, 2003Assignee: Fuji Xerox Co., Ltd.Inventors: Shinobu Ozeki, Tsutomu Hamada, Hiroki Ishida, Masaki Hirota, Kazuhiro Sakai, Kenichi Kobayashi, Masao Funada, Hiroshi Fujimagari
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Publication number: 20030179657Abstract: A magneto-optical disk apparatus (100) includes an optical pickup (101) and a magnetic head (113). The optical pickup (101) irradiates a magneto-optical recording medium (10) with a laser beam of such intensity that a part of a reproducing layer of the magneto-optical recording medium (10) is heated to a temperature over the compensation temperature. The magnetic head (113) applies to the magneto-optical recording medium (10) a DC magnetic field having intensity weaker than the intensity at which magnetization of a transition-metal-rich area in a part of the reproducing layer heated to a temperature over the compensation temperature is inverted. The optical pickup (101) detects a magneto-optical signal varying in intensity between two levels. As a result, a signal can be reproduced correctly from the magneto-optical recording medium (10) by a magnetic domain enlargement system.Type: ApplicationFiled: September 16, 2002Publication date: September 25, 2003Inventors: Hitoshi Noguchi, Atsushi Yamaguchi, Hiroki Ishida, Naoyuki Takagi, Kenichiro Mitani
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Patent number: 6590836Abstract: On a dielectric layer of SiN a reproduction layer, a non-magnetic layer of SiN and a recording layer of TbFeCo are formed to provide a magneto optical recording medium. The reproduction layer is formed of a first layer corresponding to a Gd layer, a second layer formed of GdFeCo and a third layer corresponding to a Gd layer. As such, the magneto optical recording medium, with the non-magnetic layer formed in contact with the reproduction layer, can prevent the non-magnetic layer from affecting the reproduction layer and thus prevent the reproduction layer from having a degraded characteristic.Type: GrantFiled: September 25, 2000Date of Patent: July 8, 2003Assignee: Sanyo Electric Co., Ltd.Inventors: Atsushi Yamaguchi, Hitoshi Noguchi, Hiroki Ishida
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Publication number: 20030111054Abstract: A chamfering portion provided at an inlet corner of a port of an inside way-out in a governor shaft is effective to decrease energy loss of fuel flowing into the inside way-out to less than one half in comparison with that of a conventional art. A flow amount characteristic of the fuel into the inside way-out improves so that a hysteresis between a pump chamber pressure decrease characteristic on increasing a load (a retarding characteristic) and a pump chamber pressure increase characteristic on decreasing the load (an advancing characteristic) is lowered, resulting in securing a highly accurate control of fuel injection timing.Type: ApplicationFiled: December 16, 2002Publication date: June 19, 2003Inventor: Hiroki Ishida
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Patent number: 6558920Abstract: According to the protein expression system in which a variety of desired useful proteins are highly produced by fusing a coding region of useful protein gene to the downstream of a promoter region of a tyrosinase-encoding gene (melO) of Aspergillus oryzae by a usual method of DNA manipulation, transferring a plasmid containing the resulting novel fusion gene into Aspergillus oryzae and incubating the thus-obtained transformant, various proteins can efficiently be produced at a high purity and in a high yield.Type: GrantFiled: March 2, 2000Date of Patent: May 6, 2003Assignee: Gekkeikan Sake Company LimitedInventors: Yoji Hata, Hiroki Ishida, Hiromoto Hisada, Eiji Ichikawa, Akitsugu Kawato, Yasuhisa Abe, Koji Suginami, Satoshi Imayasu
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Patent number: 6483783Abstract: A magnetic head is configured of a core and a coil wound around the core and passing current through the coil in a variable direction allows the core to have an edge generating an alternating magnetic field Hex1 and another edge generating an alternating magnetic field Hex2. Alternating magnetic fields Hex1 and Hex2 are applied to the respective edges. Furthermore, a laser beam LB1 is directed such that its optical axis L01 matches the edge receiving the alternating magnetic field Hex1, and a laser beam LB2 is directed such that its optical axis L02 matches the edge receiving the alternating magnetic field Hex2. A first magneto-optical signal detected through the alternating magnetic field Hex1 and the laser beam LB1 and a second magneto-optical signal detected through the alternating magnetic field Hex2 and the laser beam LB2 are composited together.Type: GrantFiled: November 16, 2000Date of Patent: November 19, 2002Assignee: Sanyo Electric Co., Ltd.Inventors: Kenichiro Mitani, Naoyuki Takagi, Hitoshi Noguchi, Hiroki Ishida, Atsushi Yamaguchi, Morio Nakatani
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Publication number: 20020093677Abstract: A multifunction system has advanced functions and high speed capability and is excellent in expandability. The multifunction system includes a controller, an IIT, an IOT, and a light distributing device. For a print job, print data outputted from the controller is converted into optical signals, which enter a light distributing device and are transmitted to the IOT of the emission side. The IOT prints the received data onto a printer. For a copy job, copy data outputted from IIT is converted into optical signals, which enter the light distributing device, and are transmitted to the IOT of the emission side. For a scan job, scan data outputted from the scanner is converted into optical signals, which enter the light distributing device, and are transmitted to the controller of the emission side. The controller processes the received data.Type: ApplicationFiled: May 29, 2001Publication date: July 18, 2002Applicant: FUJI XEROX CO., LTD.Inventors: Shinobu Ozeki, Tsutomu Hamada, Junji Okada, Masao Funada, Takeshi Kamimura, Hidenori Yamada, Kazuhiro Sakai, Shinya Kyozuka, Hiroki Ishida, Osamu Takanashi, Masaaki Miura, Kenichi Kobayashi, Tsuyoshi Yaguchi, Kazuhiro Hama, Toshiki Matsui, Yasuhiro Arai, Hirotaka Mori
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Publication number: 20020048237Abstract: There is provided an optical disk drive capable of appropriately effecting recording and reproducing operations without being affected by offset values and a laser output value, which are set at startup of the disk drive, even when changes have arisen in the internal temperature of the disk drive because of changes in ambient temperature. In an optical disk drive, a temperature sensor provided on a pickup measures a temperature. When changes in temperature are greater than a predetermined level, a focus offset value, a tracking offset value, and a value of laser output from the pickup are reset.Type: ApplicationFiled: September 28, 2001Publication date: April 25, 2002Inventors: Yoshihisa Suzuki, Sayoko Tanaka, Hitoshi Noguchi, Hiroki Ishida
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Patent number: 6366375Abstract: An optical-signal transmission apparatus and method for optical-signal transmission, or a signal processing apparatus for signal processing including optical-signal transmission. A number of terminals (circuit boards and the like) are connected, and communication can be freely performed among the terminals. A plurality of transmission nodes input optical signals having different light intensity levels into an optical transmission medium. A desired signal is separated and extracted from a multiplex signal where these optical signals transmitted from a reception node are overlaid.Type: GrantFiled: November 5, 1998Date of Patent: April 2, 2002Assignee: Fuji Xerox Co., Ltd.Inventors: Kazuhiro Sakai, Tsutomu Hamada, Shinobu Ozeki, Masaki Hirota, Shinya Kyouzuka, Kenichi Kobayashi, Hiroki Ishida, Hiroshi Fujimagari, Masao Funada, Takashi Ozawa
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Publication number: 20020012140Abstract: An optical bus system comprising an optical bus is furnished, along two opposed edges, with a plurality of signal light input/output portions for inputting and outputting signal light to and from the bus. Any one of the signal light input/output portions on one edge of the bus inputs signal light thereto and propagates the light to the opposite edge at which another signal light input/output portion outputs the propagated signal light from the bus. The system also comprises a plurality of light emitting/receiving circuits corresponding to the signal light input/output portions. Each light emitting/receiving circuit has a signal light sending unit and a signal light receiving unit. The signal light sending unit generates signal light and sends the generated signal light into the optical bus through the corresponding signal light input/output portion. The signal light receiving unit acquires a received light signal upon receipt of the signal light output by the corresponding signal light input/output portion.Type: ApplicationFiled: August 30, 2001Publication date: January 31, 2002Applicant: FUJI XEROX CO., LTD.Inventors: Shinobu Ozeki, Tsutomu Hamada, Hiroki Ishida, Masaki Hirota, Kazuhiro Sakai, Kenichi Kobayashi, Masao Funada, Hiroshi Fujimagari
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Patent number: 6317242Abstract: An optical bus system comprising an optical bus is furnished, along two opposed edges, with a plurality of signal light input/output portions for inputting and outputting signal light to and from the bus. Any one of the signal light input/output portions on one edge of the bus inputs signal light thereto and propagates the light to the opposite edge at which another signal light input/output portion outputs the propagated signal light from the bus. The system also comprises a plurality of light emitting/receiving circuits corresponding to the signal light input/output portions. Each light emitting/receiving circuit has a signal light sending unit and a signal light receiving unit. The signal light sending unit generates signal light and sends the generated signal light into the optical bus through the corresponding signal light input/output portion. The signal light receiving unit acquires a received light signal upon receipt of the signal light output by the corresponding signal light input/output portion.Type: GrantFiled: December 29, 1998Date of Patent: November 13, 2001Assignee: Fuji Xerox Co., Ltd.Inventors: Shinobu Ozeki, Tsutomu Hamada, Hiroki Ishida, Masaki Hirota, Kazuhiro Sakai, Kenichi Kobayashi, Masao Funada, Hiroshi Fujimagari
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Publication number: 20010024342Abstract: A magnetic head comprises a core having a first leg, a second leg and a third leg and a coil wound on the second leg of the core. An end of the second leg is formed by a first portion formed by two inclined surfaces and a second portion formed by a flat surface. When a current is fed to the coil, a magnetic field oblique to a magnetooptical recording medium is generated from the first portion of the second leg, and a magnetic field perpendicular to the magnetooptical recording medium is generated from the second portion. Consequently, a magnetic field perpendicular to the magnetooptical recording medium can be applied to the magnetooptical recording medium for recording a signal, while a magnetooptical field having a prescribed angle with respect to the in-plane direction of the magnetooptical recording medium can be applied to the magnetooptical recording medium for reproducing a signal.Type: ApplicationFiled: March 13, 2001Publication date: September 27, 2001Applicant: Sanyo Electric Co., LtdInventors: Kenichiro Mitani, Naoyuki Takagi, Hitoshi Noguchi, Atsushi Yamaguchi, Hiroki Ishida
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Patent number: 6295253Abstract: When recording a recorded signal consisting of “01011001110” in a magnetooptical recording medium, (1,1) corresponding to a domain of 2T is converted to (1,0,1), and (0,0) is converted to (0,1,0) in the recorded signal. In other words, the first “1” of (1,1) is converted to unit bits “1,0” and the first “0” of (0,0) is converted to unit bits “0,1”. Similarly, the first “1” of (1,1,1) corresponding to a domain of 3T is converted to unit bits “1,0”, and the second “1” is converted to unit bits “1,0”. “1” or “0” of the final unit bit is not converted but recorded as such. Consequently, a signal can be correctly reproduced by extension ally transferring domains having different domain lengths from a recording layer to a reproducing layer under the same reproducing conditions.Type: GrantFiled: September 21, 2000Date of Patent: September 25, 2001Assignee: Sanyo Electric Co., Ltd.Inventors: Kenichiro Mitani, Naoyuki Takagi, Hitoshi Noguchi, Atsushi Yamaguchi, Hiroki Ishida
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High density magnetic recording apparatus including a hologram type magnetic head positioning system
Patent number: 6128155Abstract: A magnetic recording apparatus including a magnetic head portion 9, a light emitting portion 10b emitting a light beam, a hologram portion 10a, a light receiving portion 10c, a carriage 12 and a control portion 16 for positioning the magnetic head portion 9 to a predetermined position. The hologram portion 10a is in a plate-like shape and has on one major surface a first gold reflection surface 10a3 formed on a first thing film layer 10a1 and on the other major surface a second gold reflection surface 10a4 formed on a second thin film layer 10a2. The hologram portion 10a also includes a light path 10a5 that guides the light beam in a zig-zag manner between the first and the second reflection surfaces 10a3 and 10a4 and optical components 10a8, 10a9, 10a10 for converting the light emitted from the light emitting portion 10b into a positioning light beam.Type: GrantFiled: July 6, 1998Date of Patent: October 3, 2000Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Naoto Sugawara, Hiroki Ishida -
Patent number: 6055122Abstract: A holographic unit for applying light to a recording medium comprises an optical path, a first optical diffracting member, a second optical diffracting member, an optical condensing member, a first entrance/exit surface disposed at a predetermined first angle to a first reflecting surface, and a second entrance/exit surface disposed at a predetermined second angle to a second reflecting surface to project a plurality of light beams so that the plurality of light beams fall on a position sensing track formed on a recording medium perpendicularly to the surface of the recording medium.Type: GrantFiled: April 24, 1998Date of Patent: April 25, 2000Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Naoto Sugawara, Masatomo Seya, Hiroki Ishida