Patents by Inventor Fukashi Ohi
Fukashi Ohi 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: 7227712Abstract: A disk drive apparatus mounting socket includes a socket portion which supports a disk drive apparatus, a lead portion which is connected to the disk drive apparatus supported by the socket portion, and a terminal unit which is electrically connected to the lead portion and to circuits on a board. A disk drive apparatus, which is connectable to an information processing unit, includes a connecting unit which connects the disk drive apparatus to the information processing unit, and an interface unit which controls the disk drive apparatus in response to a control signal, a data bus signal, and an address bus signal which are generated by the information processing unit and are inputted to the disk drive apparatus from the information processing unit via the connecting unit.Type: GrantFiled: December 3, 2004Date of Patent: June 5, 2007Assignee: Hitachi Global Storage Technologies Japan, Ltd.Inventors: Hitoshi Ogawa, Eisaku Saiki, Satoshi Kawamura, Kiyoshi Honda, Kazuhisa Shiraishi, Fukashi Ohi
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Publication number: 20050111130Abstract: A disk drive apparatus mounting socket includes a socket portion which supports a disk drive apparatus, a lead portion which is connected to the disk drive apparatus supported by the socket portion, and a terminal unit which is electrically connected to the lead portion and to circuits on a board. A disk drive apparatus, which is connectable to an information processing unit, includes a connecting unit which connects the disk drive apparatus to the information processing unit, and an interface unit which controls the disk drive apparatus in response to a control signal, a data bus signal, and an address bus signal which are generated by the information processing unit and are inputted to the disk drive apparatus from the information processing unit via the connecting unit.Type: ApplicationFiled: December 3, 2004Publication date: May 26, 2005Inventors: Hitoshi Ogawa, Eisaku Saiki, Satoshi Kawamura, Kiyoshi Honda, Kazuhisa Shiraishi, Fukashi Ohi
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Patent number: 6856482Abstract: A disk drive apparatus mounting socket includes a socket portion which supports a disk drive apparatus, a lead portion which is connected to the disk drive apparatus supported by the socket portion, and a terminal unit which is electrically connected to the lead portion and to circuits on a board. A disk drive apparatus, which is connectable to an information processing unit, includes a connecting unit which connects the disk drive apparatus to the information processing unit, and an interface unit which controls the disk drive apparatus in response to a control signal, a data bus signal, and an address bus signal which are generated by the information processing unit and are inputted to the disk drive apparatus from the information processing unit via the connecting unit.Type: GrantFiled: March 21, 2001Date of Patent: February 15, 2005Assignee: Hitachi, Ltd.Inventors: Hitoshi Ogawa, Eisaku Saiki, Satoshi Kawamura, Kiyoshi Honda, Kazuhisa Shiraishi, Fukashi Ohi
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Publication number: 20010019462Abstract: A disk drive apparatus mounting socket includes a socket portion which supports a disk drive apparatus, a lead portion which is connected to the disk drive apparatus supported by the socket portion, and a terminal unit which is electrically connected to the lead portion and to circuits on a board. A disk drive apparatus, which is connectable to an information processing unit, includes a connecting unit which connects the disk drive apparatus to the information processing unit, and an interface unit which controls the disk drive apparatus in response to a control signal, a data bus signal, and an address bus signal which are generated by the information processing unit and are inputted to the disk drive apparatus from the information processing unit via the connecting unit.Type: ApplicationFiled: March 21, 2001Publication date: September 6, 2001Inventors: Hitoshi Ogawa, Eisaku Saiki, Satoshi Kawamura, Kiyoshi Honda, Kazuhisa Shiraishi, Fukashi Ohi
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Patent number: 6282688Abstract: A recording apparatus includes a plurality of ECC units operating selectively and independently. A medium access unit reads data from a recording medium in a read mode, and writes data from a host device to the recording medium in a write mode. The data read out from the recording medium contains a reproduction data and a medium reproduction check symbol added to the reproduction data, and data written contains a recording data and a medium recording check symbol added to the recording data. The reproduction data or the recording data is stored in a buffer. In a read mode, the reproduction data from the medium access unit is transferred to the host device through the buffer and in the write mode, the recording data from the host device is transferred to the medium access unit through the buffer.Type: GrantFiled: March 27, 1997Date of Patent: August 28, 2001Assignee: Hitachi, Ltd.Inventors: Motoyasu Tsunoda, Syoichi Miyazawa, Soichi Isono, Akira Kojima, Noriyuki Karasawa, Fukashi Ohi, Takashi Oeda
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Patent number: 6219909Abstract: A disk drive is mounted to a circuit board by directly connecting a disk drive apparatus with a circuit board by using a DIP, PLCC, QFP, or PGA mounting method. The disk drive apparatus has an interface for controlling a disk drive in response to a control signal, a data bus signal and an address bus signal outputted from an information processing unit so that the disk drive apparatus may be connected like a memory card of the information processing unit.Type: GrantFiled: January 3, 1994Date of Patent: April 24, 2001Assignee: Hitachi, Ltd.Inventors: Hitoshi Ogawa, Eisaku Saiki, Satoshi Kawamura, Kiyoshi Honda, Kazuhisa Shiraishi, Fukashi Ohi
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Patent number: 5638386Abstract: A recording apparatus includes a plurality of ECC units operating selectively and independently. A medium access unit reads data from a recording medium in a read mode, and writes data from a host device to the recording medium in a write mode. The data read out from the recording medium contains a reproduction data and a medium reproduction check symbol added to the reproduction data, and data written contains a recording data and a medium recording check symbol added to the recording data. The reproduction data or the recording data is stored in a buffer. In a read mode, the reproduction data from the medium access unit is transferred to the host device through the buffer and in the write mode, the recording data from the host device is transferred to the medium access unit through the buffer.Type: GrantFiled: September 21, 1992Date of Patent: June 10, 1997Assignee: Hitachi, Ltd.Inventors: Motoyasu Tsunoda, Syoichi Miyazawa, Soichi Isono, Akira Kojima, Noriyuki Karasawa, Fukashi Ohi, Takashi Oeda
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Patent number: 5157354Abstract: A phase locked loop IC comprising a voltage controlled oscillator which generates a clock signal in accordance with a control voltage, a first ECL input buffer which is an input buffer for a signal to be synchronized, a phase-lock capture circuit for producing a current determinative of the control voltage in accordance with the phase difference and the frequency difference between the signal to be synchronized and the clock signal, and a phase-lock follow-up circuit for producing a current determinative of the control voltage in accordance with the phase difference between the clock signal and the signal to be synchronized; wherein the supply voltage system of the first ECL input buffer is so disposed as to be isolated from any of the supply voltage systems of the voltage-controlled oscillator, the phase-lock capture circuit and the phase lock follow-up circuit, while the ground system of the first ECL input buffer is so disposed as to be insolated from any of the ground systems of the voltage-controlled oscType: GrantFiled: November 27, 1991Date of Patent: October 20, 1992Assignees: Hitachi, Ltd., Hitachi Video & Information System, Inc.Inventors: Eisaku Saiki, Shintaro Suzumura, Fukashi Ohi, Akira Uragami, Tsuyoshi Tateyama