Patents by Inventor Masahiko Katoh
Masahiko Katoh 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: 8699187Abstract: A manufacturing method for a head-stack assembly. The method includes preparing a head-stack assembly. The method further includes placing a connection pad forming surface of a connector tab formed on an end of the trace so as to be positioned opposite to an edge of a circuit board; sliding an elastic component along a backside of the connection pad forming surface; and, stopping the elastic component on the backside and pressing the backside with the elastic component so as to press the connection pad forming surface against the edge. In addition, the method includes metal-joining the connector tab and a connection pad of the circuit board by applying heat to a connection pad of the connector tab and the connection pad on the circuit board while pressing the connection pad forming surface against the edge with the elastic component; and, removing the elastic component after the metal-joining.Type: GrantFiled: December 18, 2009Date of Patent: April 15, 2014Assignee: HGST Netherlands B.V.Inventors: Tetsuya Nakamura, Takahiro Sakai, Masahiko Katoh, Yasushi Inoue, Tetsuya Nakatsuka, Satoshi Kaneko, Masashi Okubo
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Publication number: 20110109996Abstract: A manufacturing method for a head-stack assembly. The method includes preparing a head-stack assembly. The method further includes placing a connection pad forming surface of a connector tab formed on an end of the trace so as to be positioned opposite to an edge of a circuit board; sliding an elastic component along a backside of the connection pad forming surface; and, stopping the elastic component on the backside and pressing the backside with the elastic component so as to press the connection pad forming surface against the edge. In addition, the method includes metal joining the connector tab and a connection pad of the circuit board by applying heat to a connection pad of the connector tab and the connection pad on the circuit board while pressing the connection pad forming surface against the edge with the elastic component; and, removing the elastic component after the metal joining.Type: ApplicationFiled: December 18, 2009Publication date: May 12, 2011Inventors: Tetsuya Nakamura, Takahiro Sakai, Masahiko Katoh, Yasushi Inoue, Tetsuya Nakatsuka, Satoshi Kaneko, Masashi Okubo
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Patent number: 7811597Abstract: An article, such as a container or bag for garbage, which repels animals such as cats, dogs, rats, and crows. The article may be made from a synthetic resin composition including a synthetic resin and from 10 to 15,000 ppm by weight of a salicylic acid ester, menthol and/or camphor. The article may also be made from a synthetic resin composition including a synthetic resin and an odorant composition containing eucalyptus oil and one or more of a salicylic acid ester, menthol and camphor.Type: GrantFiled: September 26, 2005Date of Patent: October 12, 2010Assignee: JAD Corporation of AmericaInventors: Masahiko Katoh, Joseph Dussich
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Patent number: 7652837Abstract: Embodiments of the invention relate to erasing data recorded on a magnetic disk with increased certainty by using an external magnetic field. One embodiment is directed to a method for erasing data recorded on a magnetic disk, which is housed in a magnetic disk drive, by using an external erasure magnetic field generated by an external erasure magnetic field generator. The method comprises the steps of: moving a first magnetic disk drive within an external erasure magnetic field in a moving state appropriate for the type of the first magnetic disk drive, and erasing data recorded on a magnetic disk in the first magnetic disk drive; and moving a second magnetic disk drive, which differs in type from the first magnetic disk drive, within an external erasure magnetic field in a moving state that differs from the moving state of the first magnetic disk drive, and erasing data recorded on a magnetic disk in the second magnetic disk drive.Type: GrantFiled: July 13, 2006Date of Patent: January 26, 2010Assignee: Hitachi Global Storage Technologies Netherlands B.V.Inventors: Mitsuru Kitamura, Masahiko Katoh
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Patent number: 7646579Abstract: Embodiments of the invention prevent a spindle motor from stopping rotation while data on a magnetic disk is being erased by using a permanent magnet. In one embodiment, data in the whole area of the magnetic disk is erased as a consequence of the magnetic disk rotating in the magnetic field of the permanent magnet located so as to face a part of the magnetic disk. A back yoke is located so as to face a base. The back yoke gives a magnetic force to the spindle motor in the opposite direction of the magnetic force of the erasing permanent magnet so that the fluid dynamic bearing spindle motor can retain the rotation as required without stopping rotation.Type: GrantFiled: April 28, 2005Date of Patent: January 12, 2010Assignee: Hitachi Global Storage Technologies Netherlands B.V.Inventors: Mitsuru Kitamura, Masahiko Katoh, Hitoshi Tamura, Hiroaki Uchiyama, Masashi Murayama, Migifumi Ikeda, Kazuo Sasaki, Shigeki Watabe
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Patent number: 7415236Abstract: A cleaning unit for removing toner remaining on the surface of the image carrier of an image-forming apparatus is disclosed. The cleaning unit includes a vibration member, a blade member, and a driving part. The vibration member extends in the direction of the width of the image carrier, and has at least one vibration application part attached thereto. The blade member is attached to at least the end region of the vibration member, extending in the direction of the width of the image carrier. The driving part drives at least one vibration application part at a driving frequency that is a resonance frequency. The vibration member provides vibration to the blade member and a force to press the blade member against the image carrier.Type: GrantFiled: April 5, 2004Date of Patent: August 19, 2008Assignee: Ricoh Company, Ltd.Inventors: Tohru Nakano, Osamu Naruse, Masanori Horike, Masahiko Katoh, Masahiko Shakuto
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Publication number: 20070147909Abstract: A rotation driving apparatus is employed in a transfer unit for transferring and superimposing different color images formed on a plurality of image formation sections arranged side by side on a recordation medium carried on a belt transfer member. The rotation driving apparatus includes a plurality of rollers winding the belt transfer member, a roller state tightener for applying tension to the belt transfer member, and a driving system including a motor and a gear for driving the plurality of rollers.Type: ApplicationFiled: December 19, 2006Publication date: June 28, 2007Inventor: Masahiko Katoh
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Publication number: 20070014044Abstract: Embodiments of the invention relate to erasing data recorded on a magnetic disk with increased certainty by using an external magnetic field. One embodiment is directed to a method for erasing data recorded on a magnetic disk, which is housed in a magnetic disk drive, by using an external erasure magnetic field generated by an external erasure magnetic field generator. The method comprises the steps of: moving a first magnetic disk drive within an external erasure magnetic field in a moving state appropriate for the type of the first magnetic disk drive, and erasing data recorded on a magnetic disk in the first magnetic disk drive; and moving a second magnetic disk drive, which differs in type from the first magnetic disk drive, within an external erasure magnetic field in a moving state that differs from the moving state of the first magnetic disk drive, and erasing data recorded on a magnetic disk in the second magnetic disk drive.Type: ApplicationFiled: July 13, 2006Publication date: January 18, 2007Applicant: Hitachi Global Storage Technologies Netherlands B.V.Inventors: Mitsuru Kitamura, Masahiko Katoh
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Patent number: 7123872Abstract: A cleaning device includes a blade member having an end that touches an image carrier that caries a toner image made with toner, a vibratable member to which the blade member is fixed, and a vibrating unit that vibrates the vibratable member in such a manner that the end of the blade member does not curl.Type: GrantFiled: September 11, 2003Date of Patent: October 17, 2006Assignee: Ricoh Company, Ltd.Inventors: Masahiko Shakuto, Tohru Nakano, Masanori Horike, Osamu Naruse, Masahiko Katoh
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Publication number: 20060110421Abstract: An article, such as a container or bag for garbage, which repels animals such as cats, dogs, rats, and crows. The article may be made from a synthetic resin composition including a synthetic resin and from 10 to 15,000 ppm by weight of a salicylic acid ester, menthol and/or camphor. The article may also be made from a synthetic resin composition including a synthetic resin and an odorant composition containing eucalyptus oil and one or more of a salicylic acid ester, menthol and camphor.Type: ApplicationFiled: September 26, 2005Publication date: May 25, 2006Inventors: Masahiko Katoh, Joseph Dussich
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Publication number: 20050243461Abstract: Embodiments of the invention prevent a spindle motor from stopping rotation while data on a magnetic disk is being erased by using a permanent magnet. In one embodiment, data in the whole area of the magnetic disk is erased as a consequence of the magnetic disk rotating in the magnetic field of the permanent magnet located so as to face a part of the magnetic disk. A back yoke is located so as to face a base. The back yoke gives a magnetic force to the spindle motor in the opposite direction of the magnetic force of the erasing permanent magnet so that the fluid dynamic bearing spindle motor can retain the rotation as required without stopping rotation.Type: ApplicationFiled: April 28, 2005Publication date: November 3, 2005Applicant: Hitachi Global Storage Technologies Netherlands B.V.Inventors: Mitsuru Kitamura, Masahiko Katoh, Hitoshi Tamura, Hiroaki Uchiyama, Masashi Murayama, Migifumi Ikeda, Kazuo Sasaki, Shigeki Watabe
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Patent number: 6933959Abstract: An optical box for positioning and fixing respective optical components is provided and functions as a housing thereof. A support stand for positioning and mounting the respective optical components, respectively, is formed separately from the optical box, and is loaded in the optical box.Type: GrantFiled: September 12, 2001Date of Patent: August 23, 2005Assignee: Ricoh Company, Ltd.Inventors: Akira Kojima, Nobuyuki Yanagawa, Masahiko Katoh
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Patent number: 6822775Abstract: A high speed rotating apparatus including a shaft, a rotary body, and a motor. The rotary body driven by the motor has a hollow into which the shaft is inserted and forms a dynamic pressure air bearing between the rotary body and the shaft. The rotary body includes first and second rotary members. The first rotary member has an inner circumferential surface held for rotation by the dynamic pressure air bearing. The second rotary member has an inner circumferential surface fixed to the outer circumferential surface of the first rotary member through a hardening insertion process. The hardening insertion process is performed such that a tensile strength of the first rotary member is greater than an axial tensile stress to be produced in the inner circumferential surface of the first rotary member.Type: GrantFiled: August 23, 2002Date of Patent: November 23, 2004Assignee: Ricoh Company, Ltd.Inventors: Mitsuo Suzuki, Yukio Itami, Masahiko Katoh
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Publication number: 20040197122Abstract: A cleaning unit for removing toner remaining on the surface of the image carrier of an image-forming apparatus is disclosed. The cleaning unit includes a vibration member, a blade member, and a driving part. The vibration member extends in the direction of the width of the image carrier, and has at least one vibration application part attached thereto. The blade member is attached to at least the end region of the vibration member, extending in the direction of the width of the image carrier. The driving part drives at least one vibration application part at a driving frequency that is a resonance frequency. The vibration member provides vibration to the blade member and a force to press the blade member against the image carrier.Type: ApplicationFiled: April 5, 2004Publication date: October 7, 2004Inventors: Tohru Nakano, Osamu Naruse, Masanori Horike, Masahiko Katoh, Masahiko Shakuto
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Publication number: 20040105710Abstract: A cleaning device includes a blade member having an end that touches an image carrier that caries a toner image made with toner, a vibratable member to which the blade member is fixed, and a vibrating unit that vibrates the vibratable member in such a manner that the end of the blade member does not curl.Type: ApplicationFiled: September 11, 2003Publication date: June 3, 2004Inventors: Masahiko Shakuto, Tohru Nakano, Masanori Horike, Osamu Naruse, Masahiko Katoh
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Publication number: 20030160529Abstract: A high speed rotating apparatus including a shaft, a rotary body, and a motor. The rotary body driven by the motor has a hollow into which the shaft is inserted and forms a dynamic pressure air bearing between the rotary body and the shaft. The rotary body includes first and second rotary members. The first rotary member has an inner circumferential surface held for rotation by the dynamic pressure air bearing. The second rotary member has an inner circumferential surface fixed to the outer circumferential surface of the first rotary member through a hardening insertion process. The hardening insertion process is performed such that a tensile strength of the first rotary member is greater than an axial tensile stress to be produced in the inner circumferential surface of the first rotary member.Type: ApplicationFiled: August 23, 2002Publication date: August 28, 2003Inventors: Mitsuo Suzuki, Yukio Itami, Masahiko Katoh
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Patent number: 6215974Abstract: A developing apparatus for supplying toner includes a toner hopper configured to hold unused toner, a developing tub, and a toner hopper mounting part provided between the developing tub and the toner hopper. The toner hopper is adapted to be mounted to and removed from the toner hopper mounting part. The toner hopper mounting part includes a vibration apparatus for vibrating the toner hopper mounting part to loosen the unused toner stored in the toner hopper.Type: GrantFiled: May 10, 1999Date of Patent: April 10, 2001Assignee: Ricoh Company, Ltd.Inventors: Masahiko Katoh, Nobuyuki Yanagawa, Masanori Saito, Hideaki Kibune, Akira Imai
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Patent number: 6212046Abstract: An arm assembly for a disk drive device in accordance with the present invention comprises a plurality of arms arranged in parallel to each other, one end of each of said arms supporting a read/write head, and each of said arms having an extended plate which cantilevers from one of side edges of said arm, said extended plate being capable of deflecting in a direction which is vertical to a plane of said arm, and rotationally gimbal to a limited degree about two axes in the plane of said arm, a plurality of first connecting pads provided on each of said extended plates, said first connecting pads being connected to said read/write head, a circuit board which engages with said cantilevered extended plate and is provided with a plurality of second connecting pads characterized in that the plane of said circuit board is approximately orthogonal to said extended plate and is so located with respect to said extended plates of said plurality of arms to align said second connecting pads to said first connecting padsType: GrantFiled: September 16, 1998Date of Patent: April 3, 2001Assignee: International Business Machines CorporationInventors: David William Albrecht, Akihiko Aoyagi, Hitoshi Tsujino, Masahiko Katoh, Masaki Kobayashi, Surya Pattanaik, A. David Erpelding
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Patent number: 6185075Abstract: An actuator arm assembly comprises stacked suspensions, spacers, a pivot, washer and nut. The pivot and washer have hold portions for engagement during assembly to prevent misalignment of the suspensions. The suspensions, spacers, and washer each have alignment apertures for receiving an alignment bolt for maintaining proper alignment of the suspensions.Type: GrantFiled: August 10, 1998Date of Patent: February 6, 2001Assignee: International Business Machines CorporationInventors: Hitoshi Tsujino, David William Albrecht, Masahiko Katoh, Jun Ishikawa
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Patent number: 6135100Abstract: A number of embodiments of feedback control systems for two-cycle, internal combustion engine management systems. Each embodiment employs an exhaust system sensor which senses the exhaust gases by drawing exhaust gases from the exhaust of the engine. In some instances this is done directly from the cylinder and in others it is done in the exhaust system. In each embodiment, the sensor is provided in an accumulator chamber so as to provide an accurate signal of instantaneous engine running conditions. The use of the accumulator chamber insures that the combustible gases will not be diluted with fresh air charge, but will be able to purge from cycle to cycle so as to provide cycle-by-cycle information. Various arrangements are provided for protecting the sensor element including serpentine flow paths, shields, the direction in which the exhaust gases are delivered, lubricant catalysts, conduit shape, sensor cooling and combinations of these features.Type: GrantFiled: June 7, 1995Date of Patent: October 24, 2000Assignee: Sanshin Kogyo Kabushiki KaishaInventor: Masahiko Katoh