Patents by Inventor Ichiro Hatakeyama
Ichiro Hatakeyama 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: 8315491Abstract: To provide an optical connector which enables heat generated by an optical interface module arranged on the lower surface of the optical connector to be efficiently dissipated from the upper surface of the optical connector. The optical connector includes an optical transmission path 101 including a 45-degree mirror 106 at an end section thereof, wherein, in the optical transmission path 101, the lower surface on which an optical input/output section 102 is provided, and the upper surface facing the lower surface are sandwiched by metal patterns 107 and 108 having a heat conductivity higher than that of the optical transmission path 101, and wherein the metal patterns 107 and 108 are physically connected to each other by heat dissipation vias 103 having a heat conductivity higher than that of the optical transmission path 101.Type: GrantFiled: July 17, 2007Date of Patent: November 20, 2012Assignee: NEC CorporationInventors: Tomoyuki Hino, Ichiro Hatakeyama, Ichiro Ogura
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Patent number: 7918610Abstract: An optical connector fitted upon a tip end portion of an optical fiber ribbon and disposed to face an optical input and output terminators which are installed upon a substrate, and which optically connects between optical fibers of the optical fiber ribbon and each of the optical input and output terminators. The optical connector includes a block shaped connector main body which is disposed to face the optical input and output terminators.Type: GrantFiled: April 8, 2009Date of Patent: April 5, 2011Assignees: Fujikura Ltd., NEC CorporationInventors: Kunihiko Fujiwara, Akito Nishimura, Yukio Hayashi, Tetsuo Nozawa, Takanori Shimizu, Ichiro Hatakeyama, Kazuhiko Kurata
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Publication number: 20100321902Abstract: A connection structure includes housing (10) having insertion/removal openings (11a, 12a) into which and from which a plurality of CPU cards (6), in which electronic parts are mounted on a circuit board, and switch cards (7) are inserted and removed, back plane (13) to which cards (6, 7) are electrically connected, and optical circuit board (14) that is optically connected to optical connectors (16) which are arranged on cards (6, 7) so as to be exposed to the outside of housing (10) from insertion/removal openings (11a, 12a) with cards (6, 7) connected to back plane (13).Type: ApplicationFiled: November 26, 2007Publication date: December 23, 2010Inventors: Ichiro Hatakeyama, Shigeyuki Yanagimachi, Youichi Hidaka, Ichiro Ogura
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Publication number: 20100232746Abstract: To provide an optical connector which enables heat generated by an optical interface module arranged on the lower surface of the optical connector to be efficiently dissipated from the upper surface of the optical connector. The optical connector includes an optical transmission path 101 including a 45-degree mirror 106 at an end section thereof, wherein, in the optical transmission path 101, the lower surface on which an optical input/output section 102 is provided, and the upper surface facing the lower surface are sandwiched by metal patterns 107 and 108 having a heat conductivity higher than that of the optical transmission path 101, and wherein the metal patterns 107 and 108 are physically connected to each other by heat dissipation vias 103 having a heat conductivity higher than that of the optical transmission path 101.Type: ApplicationFiled: July 17, 2007Publication date: September 16, 2010Inventors: Tomoyuki Hino, Ichiro Hatakeyama, Ichiro Ogura
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Patent number: 7783143Abstract: A semiconductor device has printed wiring board (11) where electric wiring (18) connected to LSI chip (17) and to planar optical element (21) is formed, and where optical waveguide (25) which transfers light inputted into planar optical element (21) and/or light outputted from planar optical element (21) is fixed. Planar optical element (21) is mounted in one end of small substrate (13), and another end of small substrate (13) is connected to printed wiring board (11) by solder bump (26). One end of small substrate (13) where planar optical element (21) is mounted is fixed to printed wiring board (11) by a fixing mechanism. Small substrate (13) has flexible section (15), which is easily deformable compared with other portions of printed wiring board (11) and small substrate (13), in at least a partial region between one end where planar optical element (21) is mounted and another end electrically connected to printed wiring board (11).Type: GrantFiled: April 3, 2009Date of Patent: August 24, 2010Assignee: NEC CorporationInventors: Kazunori Miyoshi, Kazuhiko Kurata, Takanori Shimizu, Ichiro Hatakeyama, Junichi Sasaki
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Patent number: 7620272Abstract: A photoelectric composite module has an optical device, a package and a flexible printed circuit that is set along both case parts of the package, and electric wiring for the optical device is formed thereon. The package has a first case part and a second case part that is connected with the first case part by a hinge and is set on a mounted board. The optical device is joined with a surface that faces the first case part in said flexible printed circuit. The flexible printed circuit has light extraction means for transmitting an optical signal that should be exchanged between the optical device and the optical waveguide. The package has short-circuiting means for making a short circuit between the electrical wiring of the flexible printed circuit and the electrical wiring of the mounted board.Type: GrantFiled: April 23, 2007Date of Patent: November 17, 2009Assignee: NEC CorporationInventors: Tomoyuki Hino, Kazuhiko Kurata, Ichiro Ogura, Junichi Sasaki, Ichiro Hatakeyama, Yoichi Hashimoto, Ryosuke Kuribayashi
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Publication number: 20090196556Abstract: An optical transceiver 10 includes an optical device 16 which is provided upon a substrate 11, an optical connector 14 which is connected to an optical fiber 15a, and a connector holder 13 for optically connecting together the optical device and the optical connector 14. The connector holder 13 includes an engagement means 13c which holds the optical connector 14. The engagement means 13c holds the optical connector 14 when the optical connector 14 is pressed in towards the substrate. The optical connector 14 supports the optical fiber 15a so that the optical axis of the optical fiber 15a subtends a fixed angle with respect to the optical axis of the optical device 16. And the optical connector 14 includes a mirror 14g for optically connecting between the optical device 16 and the optical fiber 15a.Type: ApplicationFiled: April 8, 2009Publication date: August 6, 2009Applicants: NEC Corporation, Fujikura Ltd.Inventors: Kunihiko FUJIWARA, Akito Nishimura, Yukio Hayashi, Tetsuo Nozawa, Takanori Shimizu, Ichiro Hatakeyama, Kazuhiko Kurata
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Publication number: 20090196548Abstract: A semiconductor device has printed wiring board (11) where electric wiring (18) connected to LSI chip (17) and to planar optical element (21) is formed, and where optical waveguide (25) which transfers light inputted into planar optical element (21) and/or light outputted from planar optical element (21) is fixed. Planar optical element (21) is mounted in one end of small substrate (13), and another end of small substrate (13) is connected to printed wiring board (11) by solder bump (26). One end of small substrate (13) where planar optical element (21) is mounted is fixed to printed wiring board (11) by a fixing mechanism. Small substrate (13) has flexible section (15), which is easily deformable compared with other portions of printed wiring board (11) and small substrate (13), in at least a partial region between one end where planar optical element (21) is mounted and another end electrically connected to printed wiring board (11).Type: ApplicationFiled: April 3, 2009Publication date: August 6, 2009Applicant: NEC CorporationInventors: Kasunori MIYOSHI, Kazuhiko KURATA, Takanori SHIMIZU, Ichiro HATAKEYAMA, Junichi SASAKI
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Patent number: 7561762Abstract: A semiconductor device has printed wiring board (11) where electric wiring (18) connected to LSI chip (17) and to planar optical element (21) is formed, and where optical waveguide (25) which transfers light inputted into planar optical element (21) and/or light outputted from planar optical element (21) is fixed. Planar optical element (21) is mounted in one end of small substrate (13), and another end of small substrate (13) is connected to printed wiring board (11) by solder bump (26). One end of small substrate (13) where planar optical element (21) is mounted is fixed to printed wiring board (11) by a fixing mechanism. Small substrate (13) has flexible section (15), which is easily deformable compared with other portions of printed wiring board (11) and small substrate (13), in at least a partial region between one end where planar optical element (21) is mounted and another end electrically connected to printed wiring board (11).Type: GrantFiled: September 20, 2005Date of Patent: July 14, 2009Assignee: NEC CorporationInventors: Kazunori Miyoshi, Kazuhiko Kurata, Takanori Shimizu, Ichiro Hatakeyama, Junichi Sasaki
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Patent number: 7534052Abstract: An optical transceiver 10 includes an optical device 16 which is provided upon a substrate 11, an optical connector 14 which is connected to an optical fiber 15a, and a connector holder 13 for optically connecting together the optical device and the optical connector 14. The connector holder 13 includes an engagement means 13c which holds the optical connector 14. The engagement means 13c holds the optical connector 14 when the optical connector 14 is pressed in towards the substrate. The optical connector 14 supports the optical fiber 15a so that the optical axis of the optical fiber 15a subtends a fixed angle with respect to the optical axis of the optical device 16. And the optical connector 14 includes a mirror 14g for optically connecting between the optical device 16 and the optical fiber 15a.Type: GrantFiled: April 30, 2004Date of Patent: May 19, 2009Assignees: Fujikura Ltd., NEC CorporationInventors: Kunihiko Fujiwara, Akito Nishimura, Yukio Hayashi, Tetsuo Nozawa, Takanori Shimizu, Ichiro Hatakeyama, Kazuhiko Kurata
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Patent number: 7504701Abstract: In an optical unit including a photoelectric conversion chip adapted to be optically connected to an optical fiber, and a semiconductor chip for driving the photoelectric conversion chip, both the photoelectric conversion chip and the semiconductor chip are wrapped with a flexible sheet, to thereby produce an enveloper enveloping the photoelectric conversion chip and the semiconductor chip therein. At least a part of the enveloper is formed as a transparent area for allowing an optical connection between the optical fiber and the photoelectric conversion chip.Type: GrantFiled: February 20, 2007Date of Patent: March 17, 2009Assignees: NEC Electronics Corporation, NEC CorporationInventors: Shigeru Moribayashi, Yoshiaki Morishita, Kowashi Taketomi, Takao Yamazaki, Shinji Watanabe, Ichiro Hatakeyama
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Patent number: 7488122Abstract: An optical waveguide or first optical fiber whose one end optically connects with a light exit plane and/or light incidence plane of an optical element and whose other end optically connects with an second optical fiber and a connector for mechanically connecting the optical waveguide or the first optical fiber and the second optical fiber are included. The optical waveguide or first optical fiber is bent in order to change the traveling direction of light so that the light incoming from one end is emitted from the other end substantially in parallel with a board and the light incoming substantially in parallel with the board to the optical waveguide or first optical fiber from the other end is emitted from one end toward the optical element.Type: GrantFiled: March 30, 2007Date of Patent: February 10, 2009Assignee: NEC CorporationInventors: Youichi Hashimoto, Junichi Sasaki, Ichiro Hatakeyama, Kazuhiko Kurata
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Patent number: 7473038Abstract: An optical connector according to the present invention including a connector body mounted on an optical module mounted on a circuit board, and a connector fixing member for pressing the connector body against the optical module. The connector fixing member can be engaged/disengaged with/from the circuit board, and thus the connector body can be attached/detached to/from the optical module.Type: GrantFiled: May 22, 2006Date of Patent: January 6, 2009Assignees: Fujikura Ltd., NEC CorporationInventors: Kunihiko Fujiwara, Akito Nishimura, Kenji Sasaki, Yukio Hayashi, Ichiro Hatakeyama, Youichi Hashimoto, Junichi Sasaki, Ryosuke Kuribayashi, Kazunori Miyoshi, Kazuhiko Kurata
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Patent number: 7333683Abstract: An LSI package having an optical interface is mounted on a surface of a photoelectric wiring board. The photoelectric wiring board and the optical interface are optically connected with sufficient precision. A wiring board side guide member including socket pins and guide pins is soldered and fixed onto the photoelectric wiring board including an optical transmission line, a guide pin, and a mirror. An optical interface side guide member having a fitting hole is glued to the optical interface. The optical interface is mounted on an interposer of the LSI package. The guide pin of the photoelectric wiring board is fitted into the fitting hole formed through the interposer. The guide pin of the guide member is fitted into the fitting hole of the guide member. As a result, position alignment between the optical interface and the photoelectric wiring board is conducted with high precision.Type: GrantFiled: October 7, 2005Date of Patent: February 19, 2008Assignee: NEC CorproationInventors: Junichi Sasaki, Ichiro Hatakeyama, Kazunori Miyoshi, Hikaru Kouta, Kaichiro Nakano, Mikio Oda, Hisaya Takahashi, Mitsuru Kurihara
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Publication number: 20080036021Abstract: A semiconductor device has printed wiring board (11) where electric wiring (18) connected to LSI chip (17) and to planar optical element (21) is formed, and where optical waveguide (25) which transfers light inputted into planar optical element (21) and/or light outputted from planar optical element (21) is fixed. Planar optical element (21) is mounted in one end of small substrate (13), and another end of small substrate (13) is connected to printed wiring board (11) by solder bump (26). One end of small substrate (13) where planar optical element (21) is mounted is fixed to printed wiring board (11) by a fixing mechanism. Small substrate (13) has flexible section (15), which is easily deformable compared with other portions of printed wiring board (11) and small substrate (13), in at least a partial region between one end where planar optical element (21) is mounted and another end electrically connected to printed wiring board (11).Type: ApplicationFiled: September 20, 2005Publication date: February 14, 2008Applicant: NEC CORPORATIONInventors: Kazunori Miyoshi, Kazuhiko Kurata, Takanori Shimizu, Ichiro Hatakeyama, Junichi Sasaki
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Publication number: 20070292081Abstract: An optical waveguide or first optical fiber whose one end optically connects with a light exit plane and/or light incidence plane of an optical element and whose other end optically connects with an second optical fiber and a connector for mechanically connecting the optical waveguide or the first optical fiber and the second optical fiber are included. The optical waveguide or first optical fiber is bent in order to change the traveling direction of light so that the light incoming from one end is emitted from the other end substantially in parallel with a board and the light incoming substantially in parallel with the board to the optical waveguide or first optical fiber from the other end is emitted from one end toward the optical element.Type: ApplicationFiled: March 30, 2007Publication date: December 20, 2007Applicant: NEC CORPORATIONInventors: Youichi Hashimoto, Junichi Sasaki, Ichiro Hatakeyama, Kazuhiko Kurata
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Publication number: 20070280594Abstract: A photoelectric composite module has an optical device, a package and a flexible printed circuit that is set along both case parts of the package, and electric wiring for the optical device is formed thereon. The package has a first case part and a second case part that is connected with the first case part by a hinge and is set on a mounted board. The optical device is joined with a surface that faces the first case part in said flexible printed circuit. The flexible printed circuit has light extraction means for transmitting an optical signal that should be exchanged between the optical device and the optical waveguide. The package has short-circuiting means for making a short circuit between the electrical wiring of the flexible printed circuit and the electrical wiring of the mounted board.Type: ApplicationFiled: April 23, 2007Publication date: December 6, 2007Inventors: Tomoyuki Hino, Kazuhiko Kurata, Ichiro Ogura, Junichi Sasaki, Ichiro Hatakeyama, Yoichi Hashimoto, Ryosuke Kuribayashi
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Publication number: 20070210400Abstract: In an optical unit including a photoelectric conversion chip adapted to be optically connected to an optical fiber, and a semiconductor chip for driving the photoelectric conversion chip, both the photoelectric conversion chip and the semiconductor chip are wrapped with a flexible sheet, to thereby produce an enveloper enveloping the photoelectric conversion chip and the semiconductor chip therein. At least a part of the enveloper is formed as a transparent area for allowing an optical connection between the optical fiber and the photoelectric conversion chip.Type: ApplicationFiled: February 20, 2007Publication date: September 13, 2007Applicants: NEC ELECTRONICS CORPORATION, NEC CORPORATIONInventors: Shigeru Moribayashi, Yoshiaki Morishita, Kowashi Taketomi, Takao Yamazaki, Shinji Watanabe, Ichiro Hatakeyama
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Publication number: 20060280410Abstract: An optical connector according to the present invention including a connector body mounted on an optical module mounted on a circuit board, and a connector fixing member for pressing the connector body against the optical module. The connector fixing member can be engaged/disengaged with/from the circuit board, and thus the connector body can be attached/detached to/from the optical module.Type: ApplicationFiled: May 22, 2006Publication date: December 14, 2006Inventors: Kunihiko Fujiwara, Akito Nishimura, Kenji Sasaki, Yukio Hayashi, Ichiro Hatakeyama, Youichi Hashimoto, Junichi Sasaki, Ryosuke Kuribayashi, Kazunori Miyoshi, Kazuhiko Kurata
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Publication number: 20060078248Abstract: An LSI package having an optical interface is mounted on a surface of a photoelectric wiring board. The photoelectric wiring board and the optical interface are optically connected with sufficient precision. A wiring board side guide member including socket pins and guide pins is soldered and fixed onto the photoelectric wiring board including an optical transmission line, a guide pin, and a mirror. An optical interface side guide member having a fitting hole is glued to the optical interface. The optical interface is mounted on an interposer of the LSI package. The guide pin of the photoelectric wiring board is fitted into the fitting hole formed through the interposer. The guide pin of the guide member is fitted into the fitting hole of the guide member. As a result, position alignment between the optical interface and the photoelectric wiring board is conducted with high precision.Type: ApplicationFiled: October 7, 2005Publication date: April 13, 2006Applicant: NEC CORPORATIONInventors: Junichi Sasaki, Ichiro Hatakeyama, Kazunori Miyoshi, Hikaru Kouta, Kaichiro Nakano, Mikio Oda, Hisaya Takahashi, Mitsuru Kurihara