Patents by Inventor Tomoyuki Hongoh
Tomoyuki Hongoh 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: 11561051Abstract: A heat sink includes: a base plate; and at least one fin secured to the base plate; wherein the base plate has at least one through hole that extends in a first direction parallel to a surface of the base plate, wherein the at least one fin has a projection inserted into the at least one through hole, and wherein, in a second direction that is parallel to the surface of the base plate and that is perpendicular to the first direction, both end surfaces of the projection are in contact with inner wall surfaces of the at least one through hole entirely in a third direction parallel to a thickness direction of the base plate.Type: GrantFiled: March 9, 2020Date of Patent: January 24, 2023Assignee: FUJITSU LIMITEDInventors: Yuji Shioya, Mitsuru Etou, Tomoyuki Hongoh, Ryo Matsumoto, Kazuhiko Ohta
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Publication number: 20200300560Abstract: A heat sink includes: a base plate; and at least one fin secured to the base plate; wherein the base plate has at least one through hole that extends in a first direction parallel to a surface of the base plate, wherein the at least one fin has a projection inserted into the at least one through hole, and wherein, in a second direction that is parallel to the surface of the base plate and that is perpendicular to the first direction, both end surfaces of the projection are in contact with inner wall surfaces of the at least one through hole entirely in a third direction parallel to a thickness direction of the base plate.Type: ApplicationFiled: March 9, 2020Publication date: September 24, 2020Applicant: FUJITSU LIMITEDInventors: Yuji Shioya, MITSURU ETOU, TOMOYUKI HONGOH, Ryo MATSUMOTO, Kazuhiko OHTA
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Patent number: 8469203Abstract: A rack mount apparatus is provided in an optical transmission apparatus. The rack mount apparatus includes a rack, a shelf mounted in the rack and a cross-sectional L-shaped Panel installed in the rack under a device to be rotatable so as to take an opened position and a closed position. This enables not only an easy and reliable connection of an interface cable in the rack mount apparatus without imposing a stress thereon but also a flexible determination or change of a connection position of the interface cable and even considerable improvement of the working efficiency.Type: GrantFiled: June 8, 2007Date of Patent: June 25, 2013Assignee: Fujitsu LimitedInventors: Yoshinori Hoshino, Tomoyuki Hongoh
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Patent number: 7310474Abstract: A unit installed in electronic equipment includes a connector configured to connect a transmission line of the electronic equipment, and an access plate where a plurality of the connectors are provided. The access plate is slide-able against the electronic equipment.Type: GrantFiled: December 7, 2004Date of Patent: December 18, 2007Assignee: Fujitsu LimitedInventors: Katsumi Kanasaki, Katsuki Matsunaga, Seiichiro Sato, Tomoyuki Hongoh
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Publication number: 20070242420Abstract: A rack mount apparatus is provided in an optical transmission apparatus. The rack mount apparatus includes a rack, a shelf mounted in the rack and a cross-sectional L-shaped Panel installed in the rack under a device to be rotatable so as to take an opened position and a closed position. This enables not only an easy and reliable connection of an interface cable in the rack mount apparatus without imposing a stress thereon but also a flexible determination or change of a connection position of the interface cable and even considerable improvement of the working efficiency.Type: ApplicationFiled: June 8, 2007Publication date: October 18, 2007Inventors: Yoshinori Hoshino, Tomoyuki Hongoh
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Patent number: 7027595Abstract: A telecommunications apparatus that has a substantially box-shaped subrack having a back wiring board mounting a connector and a plurality of shell-type plug-in units inserted in the subrack so that a connector of each of the plug-in units is connected to the connector of the subrack, further includes a flexible, electrically conductive seal member elastically deformedly disposed between a lateral surface of the plug-in unit inserted into the subrack and an interior portion of the subrack so as to enclose both the plug-in unit connector.Type: GrantFiled: March 21, 2001Date of Patent: April 11, 2006Assignee: Fujitsu LimitedInventors: Takehide Miyazaki, Kazuhiro Iino, Naoya Yamazaki, Tomoyuki Hongoh, Yoshinori Hoshino, Yoshiaki Tada
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Publication number: 20050105879Abstract: A unit installed in electronic equipment includes a connector configured to connect a transmission line of the electronic equipment, and an access plate where a plurality of the connectors are provided. The access plate is slide-able against the electronic equipment.Type: ApplicationFiled: December 7, 2004Publication date: May 19, 2005Inventors: Katsumi Kanasaki, Katsuki Matsunaga, Seiichiro Sato, Tomoyuki Hongoh
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Patent number: 6731851Abstract: The present invention relates to a shelf unit including a shelf having a box-like shape with an open front face and a plurality of modules having guide rails, the guide rail being engageable with a guide rail of a neighboring module. The module is inserted into the shelf through the open front face such that the guide rail slide along the guide rail of the neighboring module. The module is connected to the neighboring module with the guide rail being engaged with the guide rail of the neighboring guide rail.Type: GrantFiled: January 23, 2002Date of Patent: May 4, 2004Assignee: Fujitsu LimitedInventors: Seiichiro Sato, Katsuki Matsunaga, Katsumi Kanasaki, Tomoyuki Hongoh
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Publication number: 20030047524Abstract: The present invention relates to a shelf unit including a shelf having a box-like shape with an open front face and a plurality of modules having guide rails, the guide rail being engageable with a guide rail of a neighboring module. The module is inserted into the shelf through the open front face such that the guide rail slide along the guide rail of the neighboring module. The module is connected to the neighboring module with the guide rail being engaged with the guide rail of the neighboring guide rail.Type: ApplicationFiled: January 23, 2002Publication date: March 13, 2003Inventors: Seiichiro Sato, Katsuki Matsunaga, Katsumi Kanasaki, Tomoyuki Hongoh
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Publication number: 20020061102Abstract: A telecommunications apparatus that has a substantially box-shaped subrack having a back wiring board mounting a connector and a plurality of shell-type plug-in units inserted in the subrack so that a connector of each of the plug-in units is connected to the connector of the subrack, further includes a flexible, electrically conductive seal member elastically deformedly disposed between a lateral surface of the plug-in unit inserted into the subrack and an interior portion of the subrack so as to enclose both the plug-in unit connector.Type: ApplicationFiled: March 21, 2001Publication date: May 23, 2002Inventors: Takehide Miyazaki, Kazuhiro Iino, Naoya Yamazaki, Tomoyuki Hongoh, Yoshinori Hoshino, Yoshiaki Tada
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Patent number: 5711587Abstract: A cover mounting structure for a shelf assembly which allows easy mounting of a cover to a shelf and can reliably prevent falling of the cover even when the cover is unlocked. The shelf assembly includes a shelf having a pair of side plates and a plurality of electronic circuit packages mounted in the shelf. The cover mounting structure includes a cover having a front plate, a pair of side plates bent from the front plate at a substantially right angle thereto, and a top plate bent from the front plate at a predetermined angle thereto; and a pair of shafts fixed in the vicinity of the upper ends of the side plates of the cover so as to project inside of the cover. A pair of recesses for receiving the shafts are formed at the upper ends of the side plates of the shelf, and a pair of guiding slant surfaces for guiding reception of the shafts into the recesses are formed at the front edges of the upper ends of the side plates of the shelf.Type: GrantFiled: December 6, 1995Date of Patent: January 27, 1998Assignee: Fujitsu LimitedInventors: Tetsuya Takahashi, Hisao Hayashi, Shigeru Amagasa, Takashi Sato, Hiroshi Yamaji, Tsutomu Takahashi, Tomoyuki Hongoh, Koichi Namimatsu
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Patent number: 5602723Abstract: This invention relates to a subrack device applicable for an SDH network, and more particularly to a subrack device which can be produced flexibly in response to a customer's need. The subrack device has a subrack body commonly used regardless of a type of the subrack device. The subrack body has a circuit-board-unit housing portion and an outer-connecting-board mounting portion. Circuit boards and outer-connecting-board connecting-boards of different types are prepared. The outer-connecting-board mounting portion has a plurality of outer-connecting-board mounting territories. The outer-connecting-boards are plugged in the outer-connecting-board mounting territories to produce the subrack device meeting the customer's need.Type: GrantFiled: October 19, 1995Date of Patent: February 11, 1997Assignee: Fujitsu LimitedInventors: Tsutomu Takahashi, Hiroshi Yamaji, Hisao Hayashi, Shigeru Amagasa, Takashi Sato, Tomoyuki Hongoh, Tetsuya Takahashi, Kouichi Namimatsu, Kazuaki Kashiwada, Kenji Joukou, Tetsuya Murayama
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Patent number: 5398748Abstract: A heat pipe connector includes a housing having a hole shaped like a quadrangular pyramid with a large opening and a small opening. A plurality of clamp pieces are combined into a body that can be fitted into the hole shaped like a quadrangular pyramid. A heat pipe insertion opening, into which a heat pipe is inserted, is formed in the center of the combined pieces. Springs energize each clamp piece toward the small opening of the hole shaped like a quadrangular pyramid. The heat pipe is inserted into the heat pipe insertion opening from the side of the small opening of the housing hole shaped like a quadrangular pyramid. It is configured such that a spring force; of the springs as well as lateral surfaces of the hole shaped like a quadrangular pyramid apply a force to the clamp pieces to clamp the heat pipe.Type: GrantFiled: October 26, 1993Date of Patent: March 21, 1995Assignee: Fujitsu LimitedInventors: Hiroshi Yamaji, Tomoyuki Hongoh, Takashi Sato, Tsutomu Takahashi, Riichi Magome
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Patent number: 5297229Abstract: A system for extending communication equipment using flat coaxial cables, the system occupying a minimum installation space and providing equipment extensions and interface changes in a flexible manner. The system comprises a rack carrying a base shelf and at least one extension shelf. The base shelf has a plurality of base PWB assemblies inserted therein, and the extension shelf accommodates a plurality of extension PWB assemblies. One end of a flat coaxial cable bundle is attached removably to the front of each base PWB assembly. With its extra length portion left in a first tray on the base shelf, the flat coaxial cable bundle passes through the tray from front to back to enter a second tray from its back on the extension shelf. With another extra length portion left in the second tray, the flat coaxial cable bundle leaves the front end of the second tray to connect detachably to the front of each extension PWB assembly.Type: GrantFiled: March 24, 1993Date of Patent: March 22, 1994Assignee: Fujitsu LimitedInventors: Shozo Shimada, Tomoyuki Hongoh, Tetsuya Takahashi
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Patent number: 5273463Abstract: A test connector for an electronic circuit unit to be mounted on a shelf (11) of an electronic apparatus, which is adapted to be inserted on the shelf only when a projection (33) on the electronic circuit unit comes into a matching position relative to a groove (25) provided on a frame portion (21) of the shelf (11). Guide members (51, 53) with guide grooves (55, 65) which guide the opposite side edges of the electronic circuit unit (27) are provided on a printed wiring board (45) which has connectors (47, 49) at the opposite ends thereof. A plurality of rod members (61, 63) are slidably located on the guide member (51). When mounting the electronic circuit unit, at least one of the rod members (61) or (63) is slid forwardly by the projection (33), prohibiting the placement of the test connector (43) on the shelf (11) unless a protruded end of the rod member (63) is in a matching position relative to the groove (25) on the shelf (11).Type: GrantFiled: June 9, 1992Date of Patent: December 28, 1993Assignee: Fujitsu LimitedInventors: Mitsuo Kaetsu, Kiyoshi Minematsu, Hiroshi Yamaji, Tomoyuki Hongoh
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Patent number: 5253320Abstract: An optical fiber cable lead-in structure for a shelf (1) having a space (7) for receiving a remaining portion of the optical fiber cable (23), and an electronic circuit unit (12) mounted thereon having a board (14) and a surface plate (15) provided perpendicularly at one side of the board (14); the surface plate (15) covering the front side of the shelf (1) when mounting, comprising: an optical connection (21;25) for connection between the optical fiber cable (23) and the electronic circuit unit (12), which is provided on the board (14) adjacent to the backside of the surface plate (15); an outwardly protruding portion (33) that is provided in the surface plate (15) so as to correspond to the optical connection (21;25), such that an attaching and detaching operation of the optical connection (21;25) may be easily effected; and an opening (27) that is provided in the surface plate (15) such that the optical fiber cable (23) extending from the remaining fiber cable receiving space (7) is wired so as to extend aType: GrantFiled: November 23, 1992Date of Patent: October 12, 1993Assignee: Fujitsu LimitedInventors: Tetsuya Takahashi, Sataroh Sawano, Hiroshi Yamaji, Tomoyuki Hongoh, Hiroshi Kadoya