Patents by Inventor Takashi Yasui
Takashi Yasui 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: 20090164822Abstract: A system including plural storage devices provides a technique for controlling storage devices in which files are located by a file system, and turning on or off the storage devices based on prediction of the start or end of access to the files. A program that manages power to the storage devices and data access to the storage devices via the files includes means or functions for allocating a storage device as an area in which a file is located, for selecting a storage device in which a file is located, for predicting that access to a file is started for commanding turning on power to a storage device based on the prediction that access to a file is started, for predicting that access to a file terminates, and for commanding turning off power to a storage device based on the prediction that access to a file terminates.Type: ApplicationFiled: February 15, 2008Publication date: June 25, 2009Inventors: Takashi YASUI, Masaaki Shimizu
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Patent number: 7506107Abstract: In a shared memory multiprocessor system, data reading accesses and data write-back completion notifications are selected in synchronism with all of the nodes to order them. In each of the nodes, a subject address of ordered data reading access is compared with a subject address of ordered data write-back completion notification to detect a data reading operation of the same address which is passed by the completion of the data writing-back operation. Both a data reading sequence and a data writing-back sequence are determined. At this time, such a coherency response for prompting a re-reading operation of the data is transmitted to the node which transmitted the data reading access, so that coherency of the data is maintained.Type: GrantFiled: May 17, 2006Date of Patent: March 17, 2009Assignee: Hitachi, Ltd.Inventors: Takashi Yasui, Shisei Fujiwara, Norihiko Murata
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Publication number: 20070287077Abstract: To provide a photomask capable of preventing a foreign matter generation in using the photomask, and an exposure method using this photomask. The photomask includes a transparent substrate 2; a transfer pattern 4 formed in a main region 3 of a center portion of the transparent substrate 2; a light-shading band region 5 provided adjacent to the main region 3 in the outer peripheral region of the main region 3; and a pellicle 6 formed by adhering a pellicle film 6a to a pellicle frame 6b by an adhesive 8a, wherein this pellicle 6 is adhered onto a light-shading region 7 consisting of a light-shading film formed in the outer peripheral region of the main region 3, through an adhesive 8b.Type: ApplicationFiled: May 18, 2007Publication date: December 13, 2007Applicants: HOYA CORPORATION, MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Katsuhiro Takushima, Takashi Yasui
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Publication number: 20060265466Abstract: In a shared memory multiprocessor system, data reading accesses and data write-back completion notifications are selected in synchronism with all of the nodes to order them. In each of the nodes, a subject address of ordered data reading access is compared with a subject address of ordered data write-back completion notification to detect a data reading operation of the same address which is passed by the completion of the data writing-back operation. Both a data reading sequence and a data writing-back sequence are determined. At this time, such a coherency response for prompting a re-reading operation of the data is transmitted to the node which transmitted the data reading access, so that coherency of the data is maintained.Type: ApplicationFiled: May 17, 2006Publication date: November 23, 2006Inventors: Takashi Yasui, Shisei Fujiwara, Norihiko Murata
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Patent number: 6382717Abstract: A shock absorption in a seat back of a seat, which is arranged in a bracket fixed on the seat back frame in the seat back and an operation lever attached to the bracket. In this arrangement, the bracket is formed such that upper and lateral wall regions are defined independently of each other, with a slit defined therebetween. The lower securing portion of the bracket, fixedly secured on the seat back frame, is relatively easy to bend forwardly relative to the seat back frame by an external load applied to the rearward side thereof. A stopper wire member, which has an abutment end portion, is provided over the vertical wall region of bracket and a part of the seat back frame, such that the abutment end portion is oriented toward the operation lever.Type: GrantFiled: April 11, 2000Date of Patent: May 7, 2002Assignee: Tachi-S Co., Ltd.Inventors: Takashi Yasui, Katsumasa Shimizu
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Patent number: 5696957Abstract: An integrated circuit has a central processing unit for executing programs. The integrated circuit includes a register set, provided in the central processing unit, for storing crate required for executing a program in the central processing unit; and a register-file RAM, coupled to the central processing unit, for storing at least the same data as that stored in the register set in the central processing unit, wherein data stored in the register-file RAM can be supplied to the register set in the central processing unit.Type: GrantFiled: January 29, 1996Date of Patent: December 9, 1997Assignee: Ricoh Company, LtdInventors: Shinichi Yamaura, Kazuhiko Hara, Keiichi Yoshioka, Takashi Yasui
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Patent number: 5596761Abstract: A central processing unit (CPU) carries out selected reset interruption processing by using a vector address preset in accordance with an interruption source to generate an address to a data table whose contents are used to initialize selected registers. In this manner, the CPU can be reset without having first stored the processing state of the CPU in response to a reset interrupt request, without the need for extensive dedicated reset hardware, and with the ability to select desired reset values that can differ as between different interrupts and can be changed from time to time.Type: GrantFiled: August 2, 1993Date of Patent: January 21, 1997Assignee: Ricoh Company, Ltd.Inventors: Keiichi Yoshioka, Takashi Yasui, Shinichi Yamaura
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Patent number: 5511173Abstract: A programmable logic array includes a plurality of AND planes. Each AND plane executes an AND logic operation and has input terminals and output terminals. The programmable logic array also includes a single OR plane provided in common for the plurality of AND planes. The single OR plane executes an OR logic operation and has input terminals coupled to the output terminals of the plurality of AND planes and output terminals. A data processing unit using the above programmable logic array is also provided.Type: GrantFiled: January 5, 1994Date of Patent: April 23, 1996Assignee: Ricoh Co., Ltd.Inventors: Shinichi Yamaura, Takashi Yasui, Keiichi Yoshioka
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Patent number: 5364167Abstract: A structure of seat cushion frame in a vehicle seat, which has a pair of upwardly projected side frames, one of them being disposed at the side of a door of the vehicle, wherein such one of the side frames is formed with a cut-away portion at the rearward are thereof, with a forward side frame being thus defined therein, and wherein an expandable member is extended between the cut-away portion and forward side frame. The expandable member acts to allow vertical flexture of the corresponding lateral bolster portion of seat cushion, after upholstering the seat cushion frame to form the seat cushion, so that a passenger can descend from or climb onto the seat with a comfortable touch.Type: GrantFiled: October 19, 1993Date of Patent: November 15, 1994Assignee: TACHI-S Co. Ltd.Inventors: Akira Aoki, Takashi Yasui, Yoshihiro Mizushima, Mitsuru Fukushima
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Patent number: 5301338Abstract: A central processing unit includes a programmable logic array, a timing control unit, a predecoder, a data input/output part, and a processing part. The processing part carries out a predetermined operation on m-bit low-order data from among data which is composed of n bits and which is read out from a memory and m-bit high-order data from among the data composed of n bits, and outputs a carry signal when the predetermined operation on the m-bit low-order data results in a carry. When the operation code is a read modify write instruction and when the processing part outputs the carry signal, the programmable logic array controls the input/output part so that only the result of the predetermined operation on the m-bit low-order data is written into the memory.Type: GrantFiled: August 17, 1990Date of Patent: April 5, 1994Assignee: Ricoh Company, Ltd.Inventors: Shinichi Yamaura, Takashi Yasui, Keiichi Yoshioka
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Patent number: 5161229Abstract: A central processing unit has a plurality of control sections; a device for selectively operating and unoperating the control sections by an external interrruption signal; and a device for processing an interruption sequence with respect to the interruption signal by the operations of the control sections in a state in which the control sections are operated. The control processing unit may be constructed such that the control sections are composed of two control sections and one of the two control sections processes a normal instruction sequence and is unoperated by the interruption signal, and the other of the two control sections is operated at the times of the normal instruction and interruption and processes the interruption sequence in addition to the normal instruction.Type: GrantFiled: June 5, 1990Date of Patent: November 3, 1992Assignee: Ricoh Company, Ltd.Inventors: Takashi Yasui, Keiichi Yoshioka, Shinichi Yamaura
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Patent number: 5161228Abstract: An indirect address type interrupt control circuit is provided. A plurality of interrupt control units are provided for receiving an input interrupt signal and generating a vector address which corresponds to the interrupt signal. Also provided in the circuit is a control unit which responds to the input interrupt signal to cause only one of the plurality of interrupt control units which corresponds to the interrupt signal to be rendered operative. With this structure, the number of interrupt request signals can be increased or decreased with ease.Type: GrantFiled: March 2, 1989Date of Patent: November 3, 1992Assignee: Ricoh Company, Ltd.Inventors: Takashi Yasui, Masanobu Fukushima, Kazuhiko Hara
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Patent number: 4922441Abstract: A gate array device includes a plurality of basic cell regions spaced apart from one another to thereby define a plurality of intermediate regions therebetween. Each intermediate region may serve either as a memory or function cell region or as an interconnection region at least partly. The memory cell region may be selectively defined as a ROM or a RAM by metallization. A test mode or a normal operating mode may be set selectively in accordance with a control signal. When the normal operating mode is set, an input terminal is operatively connected to a memory circuit through a logic circuit; whereas, when the test mode is set, the input terminal is directly connected to the memory circuit while bypassing the logic circuit. Also provided is a memory cell structure which can be defined as a RAM memory cell or as a ROM memory cell storing a selected binary data by metallization.Type: GrantFiled: January 14, 1988Date of Patent: May 1, 1990Assignee: Ricoh Company, Ltd.Inventors: Toshihiro Tsukagoshi, Masanobu Fukushima, Keiichi Yoshioka, Takashi Yasui
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Patent number: 4606578Abstract: A head-rest is disclosed in which the lower ends of the stays are fixed to a seat frame of a seat back and a head-rest body is mounted to these stays in a manner that it is free to move in a vertical direction so as to provide a deeper recessed cavity in the rear of the seat back.Type: GrantFiled: July 30, 1984Date of Patent: August 19, 1986Assignee: Tachikawa Spring Co., Ltd.Inventor: Takashi Yasui
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Patent number: 4601515Abstract: A seat for vehicles is provided with a reclining device and a remote control means for remotely controlling the reclining device, in which seat an arm rest is pivotally mounted and provided at its forward end portion with the remote control means and at its upper portion with a recessed portion for receipt of one or more small articles. The arm rest has a linking mechanism arranged therewithin for mechanically linking the remote control means to the reclining device. The linking mechanism comprises a rod connected to the remote control means, a substantially V-shaped arm having a first leg portion and a second leg portion, of which leg portions the first leg portion is connected with the rod, an operation wire connected to the second leg portion of the substantially V-shaped arm and further connected to the reclining device and a spring extended between the first leg portion of the arm and the inner wall of the arm rest.Type: GrantFiled: August 14, 1984Date of Patent: July 22, 1986Assignee: Tachikawa Spring Co., Ltd.Inventors: Susumu Hatsutta, Takashi Yasui
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Patent number: 4568123Abstract: A head-rest vertical adjustment device is disclosed which is provided with a lock mechanism to restrict the vertical movements of a head-rest stay in a guide cylinder into which the head-rest stay is inserted in a manner that it is free to move vertically. This lock mechanism comprises a lock spring of a wire material to be engaged into an engagement groove formed in the head-rest stay from a slit formed in the guide cylinder, and an operation lever to release the lock spring from its locked position. First ends of both the lock spring and operation lever are rotatably mounted onto the same projection provided in the guide cylinder and second ends of these two members are integrally connected to each other.Type: GrantFiled: July 31, 1984Date of Patent: February 4, 1986Assignee: Tachikawa Spring Co., Ltd.Inventors: Takashi Yasui, Hideo Niibori
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Patent number: 4043801Abstract: In the refining of steel by an oxygen topblown converter, the temperature and carbon content of molten steel are simultaneously measured by a sensor at a predetermined time before the end point, whereby in accordance with the difference between a calculated carbon content at the endpoint obtained by processing the measured values and a target carbon content at the end-point, the oxygen quantity to be blown in at the end-point and the coolant requirement or the pattern of soft-blow are computed to simultaneously control the temperature and carbon content of the molten steel at the end-point.Type: GrantFiled: July 25, 1975Date of Patent: August 23, 1977Assignee: Nippon Kokan Kabushiki KaishaInventors: Eiichi Sakamoto, Masanobu Kubo, Takashi Yasui, Katsuya Suzuki, Katsuhiko Tachibana