Patents by Inventor Kenji Toshimitsu
Kenji Toshimitsu 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: 9516778Abstract: An electronic device includes: a shelf where a first slot and a second slot are formed; a plurality of kinds of electronic circuit boards including a first-side protrusion portion and a second-side protrusion portion, and an arrangement pattern of the first-side protrusion portion and the second-side protrusion is different from each other; when an electronic circuit board having the first-side protrusion portion into the first slot, the first abutment member abut the first-side protrusion portion of the first position and rotate from a first angle position to a second angle position; a second abutment member installed at the first slot and rotatable around an axis of the first direction, and when an electronic circuit board having the first-side protrusion portion into the first slot, the second abutment member abut the first-side protrusion portion of the second position and rotate from the first angle position to the second angle position.Type: GrantFiled: August 26, 2015Date of Patent: December 6, 2016Assignee: FUJITSU LIMITEDInventors: Akira Nakayama, Kenji Toshimitsu, Tsutomu Takahashi, Toshihide Inaba
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Publication number: 20160073538Abstract: An electronic device includes: a shelf where a first slot and a second slot are formed; a plurality of kinds of electronic circuit boards including a first-side protrusion portion and a second-side protrusion portion, and an arrangement pattern of the first-side protrusion portion and the second-side protrusion is different from each other; when an electronic circuit board having the first-side protrusion portion into the first slot, the first abutment member abut the first-side protrusion portion of the first position and rotate from a first angle position to a second angle position; a second abutment member installed at the first slot and rotatable around an axis of the first direction, and when an electronic circuit board having the first-side protrusion portion into the first slot, the second abutment member abut the first-side protrusion portion of the second position and rotate from the first angle position to the second angle position.Type: ApplicationFiled: August 26, 2015Publication date: March 10, 2016Applicant: FUJITSU LIMITEDInventors: Akira NAKAYAMA, Kenji TOSHIMITSU, Tsutomu TAKAHASHI, Toshihide INABA
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Patent number: 9146370Abstract: An optical cable holding device includes a central shaft section fixed to a substrate in such a way as to stand on the substrate, a plurality of flexible holding feet that are disposed in such a way as to spread radially from the central shaft section, each flexible holding foot extending from a base end on a side where the central shaft section is located, toward a side where the substrate is located and being bent in such a way as to get away from the central shaft section as the flexible holding foot gets closer to a tip which is a free end, and a plurality of cable holders that are disposed independently of the substrate at the tips of the flexible holding feet and hold an optical cable.Type: GrantFiled: December 27, 2013Date of Patent: September 29, 2015Assignee: FUJITSU LIMITEDInventors: Takashi Inoue, Kenji Tsutsumi, Junichi Hayama, Kenji Toshimitsu, Kazuo Fujita
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Publication number: 20140226947Abstract: An optical cable holding device includes a central shaft section fixed to a substrate in such a way as to stand on the substrate, a plurality of flexible holding feet that are disposed in such a way as to spread radially from the central shaft section, each flexible holding foot extending from a base end on a side where the central shaft section is located, toward a side where the substrate is located and being bent in such a way as to get away from the central shaft section as the flexible holding foot gets closer to a tip which is a free end, and a plurality of cable holders that are disposed independently of the substrate at the tips of the flexible holding feet and hold an optical cable.Type: ApplicationFiled: December 27, 2013Publication date: August 14, 2014Applicant: FUJITSU LIMITEDInventors: Takashi INOUE, KENJI TSUTSUMI, Junichi Hayama, KENJI TOSHIMITSU, KAZUO FUJITA
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Patent number: 7710720Abstract: An electronic device having an exhaust opening configured to exhaust air outside, the electronic device includes a door part configured to close the exhaust opening when the electronic device has a predetermined temperature, wherein the door part is rotated based on the own weight of the door part and a wind pressure of the air taken in the electronic device and exhausted outside the electronic device, so that the exhaust opening is closed.Type: GrantFiled: December 26, 2007Date of Patent: May 4, 2010Assignee: Fujitsu LimitedInventors: Kazuya Fuke, Naoya Yamazaki, Hideki Zenitani, Hideo Araki, Takashi Shirakami, Satoshi Ueda, Kenji Toshimitsu, Yoshiaki Tada
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Patent number: 7522804Abstract: In an optical transmission node, a plurality of shelves, respectively connected to a plurality of optical cables having limitations on bending radius, are stored in one rack of the node. In a shelf body thereof, the first and second opening portions are made in a front surface, and an extra-cable looping device loops an extra portion of the optical cable, further a moving mechanism is provided for moving the extra-cable looping device to avoid a space occupied by the units in a state removed from the second opening portion, this enables extra-cable handling within a limited spatial range and the insertion/removal of the units having various functions from the shelf in a state where the cable is active and further the improvement of a shelf mounting density per rack.Type: GrantFiled: December 21, 2004Date of Patent: April 21, 2009Assignee: Fujitsu LimitedInventors: Hideo Araki, Katsumi Kanasaki, Hirofumi Imabayashi, Kenji Toshimitsu, Yuichi Nakanishi
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Publication number: 20080174953Abstract: An electronic device having an exhaust opening configured to exhaust air outside, the electronic device includes a door part configured to close the exhaust opening when the electronic device has a predetermined temperature, wherein the door part is rotated based on the own weight of the door part and a wind pressure of the air taken in the electronic device and exhausted outside the electronic device, so that the exhaust opening is closed.Type: ApplicationFiled: December 26, 2007Publication date: July 24, 2008Applicant: FUJITSU LIMITEDInventors: Kazuya FUKE, Naoya YAMAZAKI, Hideki ZENITANI, Hideo ARAKI, Takashi SHIRAKAMI, Satoshi UEDA, Kenji TOSHIMITSU, Yoshiaki TADA
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Patent number: 7204710Abstract: An SFP module mounting structure whereby the region of a printed wiring board for mounting SFP modules is enlarged and thus the SFP modules can be mounted with high density. A swing mechanism constituted by the coupling between a holder and a base allows the holder to be swung in directions toward and away from the printed wiring board. Thus, when mounting an SFP module, the SFP module can be inserted into the holder with the holder kept in an obliquely raised state relative to the printed wiring board. Also, when detaching the SFP module, the SFP module can be pulled out of the holder with the holder obliquely raised from the printed wiring board.Type: GrantFiled: March 16, 2006Date of Patent: April 17, 2007Assignee: Fujitsu LimitedInventors: Seiichiro Sato, Kenji Tsutsumi, Hiroshi Takawa, Kenji Toshimitsu, Takashi Inoue
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Publication number: 20060062538Abstract: In an optical transmission node, a plurality of shelves, respectively connected to a plurality of optical cables having limitations on bending radius, are stored in one rack of the node. In a shelf body thereof, the first and second opening portions are made in a front surface, and an extra-cable looping device loops an extra portion of the optical cable, further a moving mechanism is provided for moving the extra-cable looping device to avoid a space occupied by the units in a state removed from the second opening portion, this enables extra-cable handling within a limited spatial range and the insertion/removal of the units having various functions from the shelf in a state where the cable is active and further the improvement of a shelf mounting density per rack.Type: ApplicationFiled: December 21, 2004Publication date: March 23, 2006Inventors: Hideo Araki, Katsumi Kanasaki, Hirofumi Imabayashi, Kenji Toshimitsu, Yuichi Nakanishi
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Patent number: 6807066Abstract: A power supply terminal that prevents damage to capacitors included in a noise filter circuit therein which may occur due to a BWB's warp or thermal stresses at soldering time. The noise filter circuit is formed on a noise filter circuit substrate, being a substrate separate from the BWB. The noise filter circuit substrate is connected conductively to part of each of press fit terminals.Type: GrantFiled: December 12, 2002Date of Patent: October 19, 2004Assignee: Fujitsu LimitedInventors: Junichi Hayama, Noburo Nakama, Tetsuya Murayama, Kenji Tsutsumi, Satoshi Tojo, Hiroshi Kadoya, Kiyonori Kusuda, Kenji Toshimitsu
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Patent number: 6644866Abstract: An electronic apparatus includes an optical connector adapting unit to which optical connectors of external optical fibers are connected. The optical connector adapting unit includes a plurality of optical connector adapters which are diagonally arranged on the front side of the apparatus. The optical connectors of the external optical fibers are diagonally detachable from the optical connector adapters. In this electronic apparatus, a large number of optical connectors of optical fibers can be connected and arranged in a restricted space.Type: GrantFiled: August 31, 1999Date of Patent: November 11, 2003Assignee: Fujitsu LimitedInventors: Kiyonori Kusuda, Kenji Tsutsumi, Hiroshi Kadoya, Kenji Toshimitsu, Kazuo Fujita, Hiroshi Katou, Mitsuaki Hayashi, Koichi Nakamura, Hironori Tanaka, Akira Sawada, Kazuya Nishida, Hideki Zenitani
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Publication number: 20030089514Abstract: A power supply terminal that prevents damage to capacitors included in a noise filter circuit therein which may occur due to a BWB's warp or thermal stresses at soldering time. The noise filter circuit is formed on a noise filter circuit substrate, being a substrate separate from the BWB. The noise filter circuit substrate is connected conductively to part of each of press fit terminals.Type: ApplicationFiled: December 12, 2002Publication date: May 15, 2003Inventors: Junichi Hayama, Noboru Nakama, Tetsuya Murayama, Kenji Tsutsumi, Satoshi Tojo, Hiroshi Kadoya, Kiyonori Kusuda, Kenji Toshimitsu
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Patent number: 6283850Abstract: There is provided a circuit board cabinet which is capable of more reliably preventing flames of a fire in a shelf from spreading to external devices, without degrading cooling capability thereof. Flames of the fire occurring in the shelf rise within a slot, pass through a shield plate, and then enter a heat shield unit. In the heat shield unit, the flames are first blocked by a heat shield plate and substantially reduced in force while passing through holes formed through the heat shield plate. Portions of the flames which were not blocked by the heat shield plate reach a top board of the unit after passing through the holes, where they are reduced. Since there is a predetermined distance between the heat shield plate and the top board, the flames having passed through the heat shield plate spread horizontally to some extent and then reach the top board. Therefore, it is possible to reduce the force of the flames sufficiently by the top board.Type: GrantFiled: June 15, 1999Date of Patent: September 4, 2001Assignee: Fujitsu LimitedInventors: Kenji Toshimitsu, Tetsuya Murayama, Hiroshi Kadoya, Yasuko Nozu, Mitsuo Kaetsu
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Patent number: 6224430Abstract: A power supply terminal assembly for use on a board and having a construction which is capable of improving working efficiency in mounting the power supply terminal assembly onto the board and enhancing mechanical strength of each power supply terminal. The power supply terminal assembly for supplying electric power to a back wiring board (BWB) comprises a terminal block formed with a pair of through slits and a screw hole at a center between the pair of through slits, and a terminal bracket bent into a U-shape and having a flat central plate portion formed therethrough with a hole corresponding to the screw hole and opposite side plate portions each formed with a plurality of press-fit terminals at an end thereof, the opposite side plate portions being inserted through the pair of through slits, respectively, and fixed thereat.Type: GrantFiled: November 30, 1999Date of Patent: May 1, 2001Assignee: Fujitsu LimitedInventors: Kiyonori Kusuda, Hiroshi Kadoya, Kenji Tsutsumi, Setuo Kojima, Kenji Toshimitsu
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Patent number: 6097872Abstract: An optical telecommunication apparatus includes a shelf, a primary substrate provided in the shelf, a secondary substrate provided on the primary substrate, an optical component provided on the secondary substrate, and an optical connector provided on the secondary substrate for connection with an external optical cable, wherein the secondary substrate is pivoted on the primary substrate about a pivot axis so as to be movable about the pivot axis between a first position in which the secondary substrate is inside said shelf and a second position in which the secondary substrate projects outside of the shelf. The secondary substrate is in electrical connection with the primary substrate while in any position between the first and second positions.Type: GrantFiled: August 11, 1998Date of Patent: August 1, 2000Assignee: Fujitsu LimitedInventors: Kiyonori Kusuda, Junichi Hayama, Kenji Tsutsumi, Hiroshi Kadoya, Kenji Joko, Tetsuya Murayama, Mayumi Nakamura, Koichi Nakamura, Kenji Toshimitsu
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Patent number: 5416673Abstract: A mounting structure for an EMI prevention filter which facilitates mounting and dismounting of the EMI prevention filter onto and from an electric wire having a connector to be releasably connected to an electronic apparatus, and which allows reliable mounting of the EMI prevention filter even where the EMI prevention filter and an object electric wire do not conform fully to each other in configuration. An outer holder in which the EMI prevent filter is accommodated is disposed such that the electric wire extends through the inside thereof, and the, the outer holder is resiliently deformed and locked in this condition, where after a second threaded portion is screwed with a first threaded portion to mount the EMI prevention filter onto the electric wire.Type: GrantFiled: January 27, 1994Date of Patent: May 16, 1995Assignee: Fujitsu LimitedInventors: Kenji Toshimitsu, Kazuaki Kashiwada, Mitsuo Kaetsu