Patents by Inventor Kenichi Tamura
Kenichi Tamura 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: 8608389Abstract: An optical transceiver includes a transmitting side photoelectric converter, a transmitting side circuit board, a receiving side photoelectric converter, a receiving side circuit board, a surface of the transmitting side circuit board being arranged to face a surface of the receiving side circuit board, a lens block disposed between the transmitting side circuit board and the receiving side circuit board, and optically connected to a transmitting side optical fiber and a receiving side optical fiber, and a frame body holding the lens block such that the lens block aligns with the transmitting side photoelectric converter and the receiving side photoelectric converter, and to fix the transmitting side circuit board and the receiving side circuit board at a predetermined distance from each other.Type: GrantFiled: October 5, 2010Date of Patent: December 17, 2013Assignee: Hitachi Cable, Ltd.Inventors: Kenichi Tamura, Yoshiaki Ishigami
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Patent number: 8465213Abstract: An optical component of an optical module has a junction surface facing an optical connector and a pair of side surfaces apart from each other in a direction perpendicular to a connection direction of the optical connector. A support member has a pair of sidewalls facing the side surfaces of the optical component respectively and concave/convex portions provided in the sidewalls and concave or convex toward the side surfaces of the optical component. The side surfaces of the optical component are fixed to the sidewalls of the support member via an adhesive, and the adhesive is also applied on surfaces of the concave/convex portions of the sidewalls.Type: GrantFiled: December 14, 2010Date of Patent: June 18, 2013Assignee: Hitachi Cable, Ltd.Inventors: Kenichi Tamura, Yoshiaki Ishigami
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Patent number: 8466409Abstract: A photoelectric conversion module includes a transmission side photoelectric conversion part for converting an electrical signal into an optical signal, a transmission side circuit board on which the transmission side photoelectric conversion part is mounted off-center to one side of the transmission side circuit board at one end of the transmission side circuit board, a reception side photoelectric conversion part for converting an optical signal into an electrical signal, and a reception side circuit board on which the reception side photoelectric conversion part is mounted off-center to one side of the reception side circuit board at one end of the reception side circuit board. A surface of the transmission side circuit board on which the transmission side photoelectric conversion part is mounted is opposite to a surface of the reception side circuit board on which the reception side photoelectric conversion part is mounted.Type: GrantFiled: July 21, 2010Date of Patent: June 18, 2013Assignee: Hitachi Cable, Ltd.Inventors: Yoshiaki Ishigami, Kenichi Tamura, Masayuki Nikaido
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Patent number: 8403572Abstract: An optical component of an optical module has a junction surface facing an optical connector and a pair of side surfaces apart from each other in a direction perpendicular to a connection direction of the optical connector. A support member has a pair of sidewalls facing the side surfaces of the optical component respectively and concave/convex portions provided in the sidewalls and concave or convex toward the side surfaces of the optical component. The side surfaces of the optical component are fixed to the sidewalls of the support member via an adhesive, and the adhesive is also applied on surfaces of the concave/convex portions of the sidewalls.Type: GrantFiled: December 14, 2010Date of Patent: March 26, 2013Assignee: Hitachi Cable, Ltd.Inventors: Kenichi Tamura, Yoshiaki Ishigami
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Patent number: 8401396Abstract: An optical communication module includes an optical package including at least one semiconductor optical device, an optical filter for reflecting light of a specific wavelength and transmitting light of an other wavelength, an optical block including a transparent material and the optical filter, a housing that houses the optical package and the optical block, an in-housing circuit board housed in the housing and mounting a peripheral electrical circuit for the optical package thereon, and an electrical connector electrically connected to the in-housing circuit board and exposed at a bottom surface of the housing. The optical block further includes a front lens portion at a front side face of the housing, a rear lens portion at a rear side face of the housing, a light inputting port, and a light outputting port. The optical filter is arranged to obliquely intersect with an optical axis passing through the front lens portion and the rear lens portion at a predetermined angle.Type: GrantFiled: September 8, 2008Date of Patent: March 19, 2013Assignee: Hitachi Cable, Ltd.Inventors: Yoshinori Sunaga, Kenichi Tamura, Yoshiaki Ishigami
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Patent number: 8395906Abstract: A high-speed transmission circuit board connection structure includes a first high-speed transmission circuit board including a laminated substrate including a first signal transmission wiring formed on a surface thereof and a ground plane formed inside thereof, a second high-speed transmission circuit board including a circuit substrate and a second signal transmission wiring formed on a surface of the circuit substrate, a conductive board connecting member for fixing the first and second high-speed transmission circuit boards to a surface thereof, and a bonding wire for electrically connecting the first signal transmission wiring and the second signal transmission wiring. The ground plane is exposed on a side end face of the laminated substrate, and a conductive film is formed on the side end face such that the ground plane of the first high-speed transmission circuit board is electrically connected to the board connecting member with the conductive film.Type: GrantFiled: June 1, 2010Date of Patent: March 12, 2013Assignee: Hitachi Cable, Ltd.Inventors: Masayuki Nikaido, Yoshiaki Ishigami, Kenichi Tamura, Takehiko Tokoro
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Patent number: 8196923Abstract: A sheet skew-correcting device includes a sheet-conveying rotation body for conveying a sheet, a skew-correcting member that contacts an end of the sheet conveyed by the sheet-conveying rotation body for correcting skew of the sheet, and a driving unit for moving the skew-correcting member. The skew-correcting member moved in a sheet-conveying direction by the driving unit contacts the end of the sheet conveyed in the sheet-conveying direction by the sheet-conveying rotation body, so as to correct the skew of the sheet.Type: GrantFiled: May 25, 2007Date of Patent: June 12, 2012Assignee: Canon Kabushiki KaishaInventors: Daisaku Kamiya, Kiyoshi Watanabe, Naoto Watanabe, Kenichi Tamura, Takashi Sugiura, Atsuteru Oikawa, Kenichi Hayashi
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Publication number: 20120027364Abstract: An optical component of an optical module has a junction surface facing an optical connector and a pair of side surfaces apart from each other in a direction perpendicular to a connection direction of the optical connector. A support member has a pair of sidewalls facing the side surfaces of the optical component respectively and concave/convex portions provided in the sidewalls and concave or convex toward the side surfaces of the optical component. The side surfaces of the optical component are fixed to the sidewalls of the support member via an adhesive, and the adhesive is also applied on surfaces of the concave/convex portions of the sidewalls.Type: ApplicationFiled: December 14, 2010Publication date: February 2, 2012Applicant: HITACHI CABLE, LTD.Inventors: Kenichi TAMURA, Yoshiaki Ishigami
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Publication number: 20110146314Abstract: A refrigerating device is provided which can improve COP when a required load is 50% of a maximum load or below. When the load required of a common evaporator is 50% or less, a control unit stops a second compressor and controls the volume of a first compressor. Accordingly, it becomes possible to improve COP when the required load is equal to or below 50% as compared to the case of controlling the first and second compressors simultaneously to a low volume.Type: ApplicationFiled: August 18, 2009Publication date: June 23, 2011Inventors: Kenichi Tamura, Yasuhiro Kondou
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Publication number: 20110125367Abstract: A control apparatus of a vehicle includes a detector to detect an opening degree of an accelerator, a controller to adjust a reaction force of the accelerator, wherein the controller is configured to increase the reaction force of the accelerator when the accelerator opening degree exceeds a threshold value, a first threshold value corresponding to a first vehicle driving force, and a second threshold value corresponding to a second vehicle driving force that is larger than the first vehicle deriving force, wherein the first threshold value is higher than the second threshold value.Type: ApplicationFiled: July 31, 2009Publication date: May 26, 2011Applicant: NISSAN MOTOR CO., LTD.Inventors: Shigeyuki Sakaguchi, Masao Shiomi, Kenichi Tamura
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Publication number: 20110101255Abstract: An optical transceiver includes a transmitting side photoelectric converter, a transmitting side circuit board, a receiving side photoelectric converter, a receiving side circuit board, a surface of the transmitting side circuit board being arranged to face a surface of the receiving side circuit board, a lens block disposed between the transmitting side circuit board and the receiving side circuit board, and optically connected to a transmitting side optical fiber and a receiving side optical fiber, and a frame body holding the lens block such that the lens block aligns with the transmitting side photoelectric converter and the receiving side photoelectric converter, and to fix the transmitting side circuit board and the receiving side circuit board at a predetermined distance from each other.Type: ApplicationFiled: October 5, 2010Publication date: May 5, 2011Applicant: HITACHI CABLE, LTD.Inventors: Kenichi TAMURA, Yoshiaki ISHIGAMI
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Patent number: 7926800Abstract: A sheet processing apparatus includes an aligning member configured to align an end of a bundle of sheets including a folded sheet by engaging with the edge of the bundle of sheets, and a sheet processing unit configured to process the bundle of sheets having the end aligned by the aligning member. The end of the bundle of sheets engaged with the aligning member is opposite to a folded portion of the folded sheet.Type: GrantFiled: June 8, 2007Date of Patent: April 19, 2011Assignee: Canon Kabushiki KaishaInventors: Atsuteru Oikawa, Kenichi Hayashi, Kenichi Tamura, Takashi Sugiura, Hitoshi Kato, Wataru Kawata, Keiko Fujita, Youichi Chikugo
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Publication number: 20110031379Abstract: A photoelectric conversion module includes a transmission side photoelectric conversion part for converting an electrical signal into an optical signal, a transmission side circuit board on which the transmission side photoelectric conversion part is mounted off-center to one side of the transmission side circuit board at one end of the transmission side circuit board, a reception side photoelectric conversion part for converting an optical signal into an electrical signal, and a reception side circuit board on which the reception side photoelectric conversion part is mounted off-center to one side of the reception side circuit board at one end of the reception side circuit board. A surface of the transmission side circuit board on which the transmission side photoelectric conversion part is mounted is opposite to a surface of the reception side circuit board on which the reception side photoelectric conversion part is mounted.Type: ApplicationFiled: July 21, 2010Publication date: February 10, 2011Applicant: HITACHI CABLE, LTD.Inventors: Yoshiaki ISHIGAMI, Kenichi TAMURA, Masayuki NIKAIDO
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Publication number: 20110031385Abstract: A photoelectric conversion module includes a transmission side photoelectric conversion part for converting an electrical signal into an optical signal, a transmission side circuit board on which the transmission side photoelectric conversion part is mounted on a top surface side of the transmission side circuit board, a reception side photoelectric conversion part for converting an optical signal into an electrical signal, a reception side circuit board on which the reception side photoelectric conversion part is mounted on a top surface side of the reception side circuit board, and a housing. The transmission side circuit board and the reception side circuit board are placed such that a back surface of the transmission side circuit board is opposite to the housing and a back surface of the reception side circuit board is opposite to the housing.Type: ApplicationFiled: July 20, 2010Publication date: February 10, 2011Applicant: HITACHI CABLE, LTD.Inventors: Yoshiaki ISHIGAMI, Kenichi TAMURA, Masayuki NIKAIDO
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Publication number: 20100328920Abstract: A high-speed transmission circuit board connection structure includes a first high-speed transmission circuit board including a laminated substrate including a first signal transmission wiring formed on a surface thereof and a ground plane formed inside thereof, a second high-speed transmission circuit board including a circuit substrate and a second signal transmission wiring formed on a surface of the circuit substrate, a conductive board connecting member for fixing the first and second high-speed transmission circuit boards to a surface thereof, and a bonding wire for electrically connecting the first signal transmission wiring and the second signal transmission wiring. The ground plane is exposed on a side end face of the laminated substrate, and a conductive film is formed on the side end face such that the ground plane of the first high-speed transmission circuit board is electrically connected to the board connecting member with the conductive film.Type: ApplicationFiled: June 1, 2010Publication date: December 30, 2010Applicant: Hitachi Cable, Ltd.Inventors: Masayuki Nikaido, Yoshiaki Ishigami, Kenichi Tamura, Takehiko Tokoro
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Patent number: 7850373Abstract: An optical module includes a circuit board, an optical element mounted on the circuit board, an electronic parts for driving the optical element, an optical block optically coupled with the optical element and adapted to be connected to an optical connector, wherein the optical block includes a protrusion including a guide pin for connecting the optical block to the optical connector, and a receiving portion formed nearly cylindrical around a root of the guide pin and having a receiving surface on which the optical block abuts the optical connector, an optical block reinforcing member including an upper lid for covering the optical block, and sidewalls for covering both sides of the optical block arranged perpendicular to a width direction of the optical connector, wherein the optical block reinforcing member includes a separate body from the optical block and is adapted to be attached on the optical block, and a casing for housing the circuit board, the optical element, the electronic parts, the optical blocType: GrantFiled: March 11, 2008Date of Patent: December 14, 2010Assignee: Hitachi Cable, Ltd.Inventors: Yoshiaki Ishigami, Kenichi Tamura
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Patent number: 7803194Abstract: The present invention provides a sintered body of titanium compound obtained by sintering the titanium compound and a method for producing the same. A titanium compound represented by the formula (1) or (2) below is sintered. [Ca10(PO4)6]TiO3.nH2O??(1) [Ca10(PO4)6]TiO2(OH)2??(2) (In the formulae, n is an integer of from 0 to 3). The obtained sintered body substantially consists of perovskite and whitlokite.Type: GrantFiled: September 29, 2008Date of Patent: September 28, 2010Assignee: Immuno-Science Co., Ltd.Inventors: Tatsushi Fujita, Kenichi Tamura, Yuriko Morisaki
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Publication number: 20100215325Abstract: An optical transmission module, includes a case including a bottom plane, a circuit substrate including a first card edge provided at one end of the circuit substrate, the circuit substrate being provided in the case to be inclined with the bottom plane of the case, an optical element mounted on the circuit substrate, and a connector member including one end part provided toward a direction opposite to the circuit substrate and another end part provided toward the circuit substrate. The first card edge is electrically connected to another end of the connector member. The one end part of the connector member includes a second card edge, the second card edge is disposed to be parallel with the bottom plane of the case.Type: ApplicationFiled: April 29, 2010Publication date: August 26, 2010Applicant: Hitachi Cable, Ltd.Inventors: Kenichi Tamura, Yoshiaki Ishigami, Takehiko Tokoro
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Publication number: 20100194119Abstract: A latch structure according to an embodiment includes a cage having an engagement hole, a connector attachably and detachably held in the cage, the connector comprising a connector body having an almost rectangular parallelepiped shape and an insertion part to be inserted into the cage formed on an end surface of the connector body, a latch cover rockably installed in an upper surface of the connector body, being formed of a single plate material and having a cover body for covering the upper surface of the connector body, an engagement claw to engage with the engagement hole of the cage formed at an end portion of the latch cover, a spring member for always energizing the latch cover so that the engagement claw engages with the engagement hole, a rocking member formed in both sides of the cover body of the latch cover and formed by bending the plate material downward and a rocking groove formed in both side surfaces of the connector body for rockably engaging with the rocking member, wherein the rocking membType: ApplicationFiled: December 21, 2009Publication date: August 5, 2010Applicant: HITACHI CABLE, LTD.Inventors: Yoshiaki ISHIGAMI, Kenichi TAMURA, Masayuki NIKAIDO
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Publication number: 20100171693Abstract: A display control device includes a cabinet, a detection unit configured to detect an orientation of the cabinet, a display screen, and a display control unit configured to control display of the display screen in accordance with the orientation of the cabinet detected by the detection unit.Type: ApplicationFiled: December 31, 2009Publication date: July 8, 2010Inventors: Kenichi TAMURA, Ikuya Sano, Yasushi Itoshiro, Yoshio Ito, Yoshiyuki Nida