Patents by Inventor Kouichi Toukairin
Kouichi Toukairin 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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Publication number: 20240096377Abstract: According to one embodiment, a disk device includes a housing, magnetic disks in the housing, and a printed circuit board attached to an outer surface of a bottom wall of the housing. The housing includes a base including a bottom wall and a side wall, and at least two base-side positioning portions provided on the bottom wall in a region overlapping the side wall. The printed circuit board includes at least two board-side positioning portions each engaged with the base-side positioning portion. One of the base-side positioning portion and the board-side positioning portion includes a pin extending substantially perpendicular to the bottom wall, and another includes a hole into which the pin is fitted.Type: ApplicationFiled: March 13, 2023Publication date: March 21, 2024Inventors: Hiroshi Minami, Shigeru Juman, Kouichi Toukairin, Yasuhiko Kato, Hirofumi Kuribara, Kenji Mizuochi
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Publication number: 20230306999Abstract: According to one embodiment, a disk device includes a magnetic disk and a rotary unit. The magnetic disk is rotatable about a first rotation axis extending in the first direction. The rotary unit includes a rotary member, a bearing, and a first filter. The bearing contains a lubricant and rotatably supports the rotary member about a second rotation axis. The first filter captures at least one component contained in the lubricant. The rotary member is provided with a hole and a first communication port. The hole extends along the second rotation axis to accommodate the bearing. The first communication port extends in a direction intersecting the second rotation axis to allow the hole to be in communication with an outside of the rotary member. The first filter is disposed in the first communication port or covers the first communication port.Type: ApplicationFiled: September 9, 2022Publication date: September 28, 2023Inventors: Kouichi TOUKAIRIN, Kenji MIZUOCHI, Hirofumi KURIBARA, Hiroshi MINAMI, Yasuhiko KATO, Yuya KINUGAWA
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Publication number: 20210287721Abstract: A disk drive includes a case having an outer surface, a recording medium and a magnetic head disposed inside the case, a board disposed outside the case and is electrically connected to the magnetic head, an electronic component mounted on a mounting surface of the board that faces the outer surface, and a heat conduction member having a hole and compressed between the electronic component and the outer surface in a thickness direction of the disk drive to thermally couple the electronic component to the case.Type: ApplicationFiled: September 3, 2020Publication date: September 16, 2021Inventor: Kouichi TOUKAIRIN
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Patent number: 10832709Abstract: According to one embodiment, a disk device includes a housing including a bottom wall including a protrusion with a first surface, a recording medium arranged in the housing, a printed circuit board attached to the bottom wall, an electronic component mounted on the printed circuit board and including a second surface facing the first surface, and a radiation sheet including a third surface which is contact with the first surface, and a fourth surface which is in contact with the second surface. An area of the first surface is less than an area of the third surface of the radiation sheet, or an area of the second surface is less than an area of the fourth surface of the radiation sheet.Type: GrantFiled: September 4, 2019Date of Patent: November 10, 2020Assignees: Kabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage CorporationInventors: Kenji Mizuochi, Takeo Hayashi, Kouichi Toukairin
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Patent number: 10825482Abstract: A magnetic disk device includes a casing having a box-like base that has a bottom wall and a cover that has a first surface facing the bottom wall, a magnetic disk provided in the casing, a head configured to write data to the magnetic disk and to read data from the magnetic disk, an actuator assembly that supports the head in the casing, a conductive container on the first surface of the cover, and a conductive body in contact with the conductive container and the cover.Type: GrantFiled: September 2, 2019Date of Patent: November 3, 2020Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATIONInventors: Hirofumi Suzuki, Kouichi Toukairin, Hisashi Hasegawa, Masaya Kudo, Kenji Hayasaka, Yusuke Nojima
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Publication number: 20200286527Abstract: A magnetic disk device includes a casing having a box-like base that has a bottom wall and a cover that has a first surface facing the bottom wall, a magnetic disk provided in the casing, a head configured to write data to the magnetic disk and to read data from the magnetic disk, an actuator assembly that supports the head in the casing, a conductive container on the first surface of the cover, and a conductive body in contact with the conductive container and the cover.Type: ApplicationFiled: September 2, 2019Publication date: September 10, 2020Inventors: Hirofumi SUZUKI, Kouichi TOUKAIRIN, Hisashi HASEGAWA, Masaya KUDO, Kenji HAYASAKA, Yusuke NOJIMA
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Publication number: 20200243109Abstract: According to one embodiment, a disk device includes a housing including a bottom wall including a protrusion with a first surface, a recording medium arranged in the housing, a printed circuit board attached to the bottom wall, an electronic component mounted on the printed circuit board and including a second surface facing the first surface, and a radiation sheet including a third surface which is contact with the first surface, and a fourth surface which is in contact with the second surface. An area of the first surface is less than an area of the third surface of the radiation sheet, or an area of the second surface is less than an area of the fourth surface of the radiation sheet.Type: ApplicationFiled: September 4, 2019Publication date: July 30, 2020Inventors: Kenji Mizuochi, Takeo Hayashi, Kouichi Toukairin
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Patent number: 8711513Abstract: According to one embodiment, a disk drive includes a housing, a disk recording medium in the housing, a drive motor, a head, a carriage configured to support the head for movement, and a flow regulation member between the recording medium and a sidewall of the housing, except for a moving region for the carriage. The flow regulation member includes a shroud member, which is located substantially flush the recording medium and adjacently faces the outer peripheral edge of the recording medium, and a plurality of fins protruding from the shroud member and configured individually to guide an airflow passing along a surface of the recording medium toward the outer periphery of the shroud member and prevent a backflow toward a center of the recording medium.Type: GrantFiled: June 6, 2013Date of Patent: April 29, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Kouichi Toukairin, Naoto Akatsuka
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Patent number: 8014107Abstract: A suspension device including a flexure with conductors is provided with an anti-ESD section. The anti-ESD section includes a metal plate, a insulating layer, a first electrically conductive member formed of a pair of read conductors, a second electrically conductive member formed of a pair of write conductors, a heater conductor, semiconductive layers, etc. The semiconductive layers are grounded to the metal plate and electrically isolated from one another by an insulating portion.Type: GrantFiled: September 12, 2007Date of Patent: September 6, 2011Assignees: NHK Spring Co., Ltd., Toshiba Storage Device CorporationInventors: Kouichi Toukairin, Hirofumi Suzuki, Osamu Kajitani, Noriyuki Saito, Hideki Kashima, Tsukasa Higashi
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Publication number: 20100265615Abstract: According to one embodiment, a storage device includes a clamp ring on a disc, configured to fix the disc to a spindle motor configured to rotate the disc, and a screw configured to fix the clamp ring to the spindle motor, and includes a screw-head and a recess in the screw-head, a center of the recess being decentered from a center of the screw-head.Type: ApplicationFiled: April 1, 2010Publication date: October 21, 2010Applicant: TOSHIBA STORAGE DEVICE CORPORATIONInventors: Hideki YAMAGUCHI, Kouichi TOUKAIRIN, Hirofumi SUZUKI, Hiroaki KOBAYASHI
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Publication number: 20080062571Abstract: A head suspension assembly has a flexure partly fixed to a head suspension. The flexure is made of a single plate material. The flexure defines at least a thin portion and a thick portion. The thin portion is received on the head suspension for supporting a head slider. The thin portion has a first thickness. The thick portion is formed at a position outside the contour of the head suspension. The thick portion has a second thickness larger than the first thickness. The thick portion exhibits a sufficient rigidity. The thick portion can thus be aligned with a receiving member in a facilitated manner. Moreover, the thin portion of the flexure has the first thickness smaller than the second thickness. The thin portion has a reduced rigidity. A reduced rigidity allows the thin portion or head slider to enjoy a responsive change in the attitude.Type: ApplicationFiled: February 8, 2007Publication date: March 13, 2008Inventors: Kouichi Toukairin, Hirofumi Suzuki, Hideki Yamaguchi, Hiroaki Kobayashi, Hiroshi Minami
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Publication number: 20080062567Abstract: A suspension device including a flexure with conductors is provided with an anti-ESD section. The anti-ESD section includes a metal plate, a insulating layer, a first electrically conductive member formed of a pair of read conductors, a second electrically conductive member formed of a pair of write conductors, a heater conductor, semiconductive layers, etc. The semiconductive layers are grounded to the metal plate and electrically isolated from one another by an insulating portion.Type: ApplicationFiled: September 12, 2007Publication date: March 13, 2008Applicants: NHK Spring Co., Ltd., FUJITSU LIMITEDInventors: Kouichi Toukairin, Hirofumi Suzuki, Osamu Kajitani, Noriyuki Saito, Hideki Kashima, Tsukasa Higashi
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Publication number: 20070146935Abstract: A magnetic head support mechanism able to inexpensively, simply, and reliably suppress air disturbances accompanying high speed rotation of the magnetic disks, the magnetic head support mechanism having an actuator arm for moving a magnetic head, a long tail for laying read/write signal lines along the arm, and slits for holding the long tail at predetermined locations along the actuator arm, the long tail and slits generating friction, that is, forming a friction structure, to press fasten the members.Type: ApplicationFiled: April 6, 2006Publication date: June 28, 2007Inventors: Hiroshi Minami, Kouichi Toukairin, Hirofumi Suzuki, Hideki Yamaguchi, Hiroaki Kobayashi