Patents by Inventor Yoichi Satoh
Yoichi Satoh 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: 6996661Abstract: A multiport memory has a plurality of RAMs and a port expansion unit electrically connected to access ports of the RAMs. The port expansion unit includes an input circuit which allows access control information for activating the RAMs in parallel every memory cycles to be collectively inputted thereto by a plurality of memory cycles, a timing generator which generates internal clock signals capable of serially prescribing each memory cycle plural times during one cycle of a clock signal (ck), and a logic circuit capable of sequentially supplying the access control information inputted to the input circuit to the plurality of RAMs in parallel in parts every serial memory cycles synchronized with the internal clock signals. The port expansion unit allows access to the access ports with the plurality of RAMs as a single multiport memory apparently.Type: GrantFiled: July 10, 2003Date of Patent: February 7, 2006Assignees: Renesas Technology Corp., Hitachi ULSI Systems Co., Ltd.Inventors: Masami Hasegawa, Yoichi Satoh, Yuuji Yanagisawa, Yoshio Iioka, Yoshimi Kitagawa, Makio Uchida
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Publication number: 20040107307Abstract: A multiport memory has a plurality of RAMs and a port expansion unit electrically connected to access ports of the RAMs. The port expansion unit includes an input circuit which allows access control information for activating the RAMs in parallel every memory cycles to be collectively inputted thereto by a plurality of memory cycles, a timing generator which generates internal clock signals capable of serially prescribing each memory cycle plural times during one cycle of a clock signal (ck), and a logic circuit capable of sequentially supplying the access control information inputted to the input circuit to the plurality of RAMs in parallel in parts every serial memory cycles synchronized with the internal clock signals. The port expansion unit allows access to the access ports with the plurality of RAMs as a single multiport memory apparently.Type: ApplicationFiled: July 10, 2003Publication date: June 3, 2004Applicants: Hitachi, Ltd., Hitachi ULSI Systems Co., Ltd.Inventors: Masami Hasegawa, Yoichi Satoh, Yuuji Yanagisawa, Yoshio Iioka, Yoshimi Kitagawa, Makio Uchida
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Patent number: 6625686Abstract: A multiport memory has a plurality of RAMs and a port expansion unit electrically connected to access ports of the RAMs. The port expansion unit includes an input circuit which allows access control information for activating the RAMs in parallel every memory cycles to be collectively inputted thereto by a plurality of memory cycles, a timing generator which generates internal clock signals capable of serially prescribing each memory cycle plural times during one cycle of a clock signal (ck), and a logic circuit capable of sequentially supplying the access control information inputted to the input circuit to the plurality of RAMs in parallel in parts every serial memory cycles synchronized with the internal clock signals. The port expansion unit allows access to the access ports with the plurality of RAMs as a single multiport memory apparently.Type: GrantFiled: August 8, 2002Date of Patent: September 23, 2003Assignees: Hitachi, Ltd., Hitachi ULSI Systems, Co., Ltd.Inventors: Masami Hasegawa, Yoichi Satoh, Yuuji Yanagisawa, Yoshio Iioka, Yoshimi Kitagawa, Makio Uchida
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Publication number: 20020194424Abstract: A multiport memory has a plurality of RAMs and a port expansion unit electrically connected to access ports of the RAMs. The port expansion unit includes an input circuit which allows access control information for activating the RAMs in parallel every memory cycles to be collectively inputted thereto by a plurality of memory cycles, a timing generator which generates internal clock signals capable of serially prescribing each memory cycle plural times during one cycle of a clock signal (ck), and a logic circuit capable of sequentially supplying the access control information inputted to the input circuit to the plurality of RAMs in parallel in parts every serial memory cycles synchronized with the internal clock signals. The port expansion unit allows access to the access ports with the plurality of RAMs as a single multiport memory apparently.Type: ApplicationFiled: August 8, 2002Publication date: December 19, 2002Applicant: Hitachi, Ltd.Inventors: Masami Hasegawa, Yoichi Satoh, Yuuji Yanagisawa, Yoshio Iioka, Yoshimi Kitagawa, Makio Uchida
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Patent number: 6480947Abstract: A multiport memory has a plurality of RAMs and a port expansion unit electrically connected to access ports of the RAMs. The port expansion unit includes an input circuit which allows access control information for activating the RAMs in parallel every memory cycles to be collectively inputted thereto by a plurality of memory cycles, a timing generator which generates internal clock signals capable of serially prescribing each memory cycle plural times during one cycle of a clock signal (ck), and a logic circuit capable of sequentially supplying the access control information inputted to the input circuit to the plurality of RAMs in parallel in parts every serial memory cycles synchronized with the internal clock signals. The port expansion unit allows access to the access ports with the plurality of RAMs as a single multiport memory apparently.Type: GrantFiled: July 15, 1999Date of Patent: November 12, 2002Assignees: Hitachi, Ltd., Hitachi Ulsi Systems Co. Ltd.Inventors: Masami Hasegawa, Yoichi Satoh, Yuuji Yanagisawa, Yoshio Iioka, Yoshimi Kitagawa, Makio Uchida
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Patent number: 5355419Abstract: An on-vehicle audio system reproducing bodily-sensible sounds is devised to rapidly eliminate masking of bodily-acoustic audio sounds caused by vibrations of a running vehicle and generate bodily-sensible sounds without giving an inharmonious feeling to the listener. The system has a low pass filter for extracting only low frequency band components of an input signal, an amplifier for amplifying the output of the low pass filter and delivering the amplified signal, a vibration unit disposed in a seat of the vehicle for converting the amplified signal to mechanical vibrations. To eliminate the masking, the system is provided with a vibration sensor for generating a vibration signal of a magnitude in accordance with vibrations of the vehicle, and a level adjusting unit for adjusting the level of the input signal in accordance with an average level of the vibration signal.Type: GrantFiled: April 23, 1993Date of Patent: October 11, 1994Assignee: Pioneer Electronic CorporationInventors: Hideo Yamamoto, Shiro Kato, Yuji Fukata, Yoichi Satoh, Akihiro Suzuki, Kenji Suehiro, Shigeru Takenaka
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Patent number: 5186912Abstract: A dispenser (10) and method for washing dishes and utensils in a dishwashing machine are disclosed. The dispenser (10) is comprised of a container (11) and lid (12), the dispenser containing a solid detergent composition (13). A slot (23) in a side wall (17) and baffle (26) allow for controlled drainage of the detergent solution. The lid (12) has a plurality of openings (18) through which water from the dishwashing machine enters, so as to dissolve the solid detergent (13). The dispenser (10) is positioned within the washing chamber (20) of a dishwashing machine (19).Type: GrantFiled: January 3, 1991Date of Patent: February 16, 1993Assignee: Ecolab, Inc.Inventors: Richard E. Steindorf, Katsumi Maeda, Daniel K. Boche, Yoichi Satoh
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Patent number: 4496497Abstract: A carburetor assembly comprising an air intake tube having a venturi section therein, a hollow cylindrical body in which the air intake tube is inserted, a float chamber, a cover for the float chamber and a clamping device. These members are individually formed and assembled with each other. The assembled members are secured by means of the clamping device.Type: GrantFiled: May 19, 1983Date of Patent: January 29, 1985Assignee: Nippon Carburetor Co., Ltd.Inventor: Yoichi Satoh