Patents by Inventor Taizo Sato

Taizo Sato 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).

  • Publication number: 20030175145
    Abstract: A material for shadow mask having the following composition of components: C≦0.0008 wt %, Si≦0.03 wt %, Mn:0.1 to 0.5 wt %, P≦0.02 wt %, S≦0.02 wt %, Al:0.01 to 0.07 wt %, N≦0.0030 wt %, B: an amount satisfying the formula: 5 ppm≦B−11/14×N≦30 ppm, balance: Fe and inevitable impurities; a method for producing the material; a shadow mask using the material (cold rolled steel sheet); and an image receiving tube equipped with the shadow mask. The material has excellent etching characteristics, which are uniform within the same coil, and excellent press formability.
    Type: Application
    Filed: April 10, 2003
    Publication date: September 18, 2003
    Applicant: Toyo Kohan Ltd.
    Inventors: Taizo Sato, Toshiyuki Ueda, Shinichi Aoki
  • Patent number: 6565676
    Abstract: A stretched mask having a high tensile strength and favorable high-temperature creep properties and free from tape twist, and a material for the stretched mask. A low-carbon steel sheet containing 70 ppm to 170 ppm of nitrogen on a weight basis is heat-treated at a temperature at which recrystallization does not take place. The heat-treated material is provided with a resist pattern for forming apertures and subjected to etching to form apertures.
    Type: Grant
    Filed: May 18, 2001
    Date of Patent: May 20, 2003
    Inventors: Akira Makita, Yutaka Matsumoto, Taizo Sato, Yoshikazu Watanabe
  • Publication number: 20030065891
    Abstract: A memory control system has a replacement detection/notification circuit for detecting occurrence of replacement of dirty entry in a cache and informing a memory controller of the detection, and a state control circuit for precharging the currently active page in a main memory when the memory controller is informed of the detection and a preceding access to the main memory attendant upon the replacement of dirty entry is completed. By precharging the active page in the main memory to return to the idle state when the preceding access attendant upon the replacement of dirty entry is completed, the succeeding access can be done only by activating the aimed page probably different from the above page. It is thereby obviated to return the activated page due to the preceding access to the idle state after a page miss occurs in the succeeding access.
    Type: Application
    Filed: November 18, 2002
    Publication date: April 3, 2003
    Applicant: Fujitsu Limited
    Inventor: Taizo Sato
  • Patent number: 6542969
    Abstract: A memory control system has a replacement detection/notification circuit for detecting occurrence of replacement of dirty entry in a cache and informing a memory controller of the detection, and a state control circuit for precharging the currently active page in a main memory when the memory controller is informed of the detection and a preceding access to the main memory attendant upon the replacement of dirty entry is completed. By precharging the active page in the main memory to return to the idle state when the preceding access attendant upon the replacement of dirty entry is completed, the succeeding access can be done only by activating the aimed page probably different from the above page. It is thereby obviated to return the activated page due to the preceding access to the idle state after a page miss occurs in the succeeding access.
    Type: Grant
    Filed: June 15, 1999
    Date of Patent: April 1, 2003
    Assignee: Fujitsu Limited
    Inventor: Taizo Sato
  • Patent number: 6468050
    Abstract: A reciprocating compressor of a type includes a cylinder block having a plurality of bores disposed in parallel with each other, a valve plate having suction ports corresponding to the respective bores, a cylinder head for closing the outer end of the cylinder block through the valve plate which is held between the cylinder head and the cylinder block and on which suction valves and discharge valves are mounted, a suction chamber formed in the cylinder head adjacent to a refrigerant introduction port, and pistons inserted into the respective bores so as to reciprocate in a predetermined phase difference. In the reciprocating compressor, partitions are disposed in the cylinder head around the outer periphery of the suction chamber for introducing suction gas into the respective bores.
    Type: Grant
    Filed: February 1, 2001
    Date of Patent: October 22, 2002
    Assignee: Sanden Corporation
    Inventors: Kenji Hashimoto, Yoshito Matsumura, Yoshinobu Ichikawa, Taizo Sato
  • Patent number: 6382939
    Abstract: In a reciprocating compressor in which a suction valve (21) of a leaf valve is placed between a valve plate (16) and a cylinder block (12) to open and close a suction port (18) formed in the valve plate, the suction valve is previously bent to open the suction port in an initial state when the compressor is stopped. The cylinder block has a cylinder bore (11) with which the suction port is communicated and into which a piston (17) is inserted. When the piston performs reciprocating movement in the cylinder bore, the suction valve opens and closes the suction port in response to the reciprocating movement in a pulsation reducing manner.
    Type: Grant
    Filed: January 16, 2001
    Date of Patent: May 7, 2002
    Assignee: Sanden Corporation
    Inventors: Kenji Hashimoto, Yoshito Matsumura, Yoshinobu Ichikawa, Taizo Sato
  • Publication number: 20020026871
    Abstract: A reciprocating compressor of a type includes a cylinder block having a plurality of bores disposed in parallel with each other, a valve plate having suction ports corresponding to the respective bores, a cylinder head for closing the outer end of the cylinder block through the valve plate which is held between the cylinder head and the cylinder block and on which suction valves and discharge valves are mounted, a suction chamber formed in the cylinder head adjacent to a refrigerant introduction port, and pistons inserted into the respective bores so as to reciprocate in a predetermined phase difference. In the reciprocating compressor, partitions are disposed in the cylinder head around the outer periphery of the suction chamber for introducing suction gas into the respective bores.
    Type: Application
    Filed: February 1, 2001
    Publication date: March 7, 2002
    Inventors: Kenji Hashimoto, Yoshito Matsumura, Yoshinobu Ichikawa, Taizo Sato
  • Patent number: 6334910
    Abstract: A purpose of the present invention is to provide a resin coated steel sheet with excellent forming, anti surface roughness and corrosion resistances suitable for a thinned, deep drawn and ironed can and a steel sheet therefor, particularly to material suitable for a container for beverage such as pop drink, coffee, tea, fruit juice and so on. Therefore, the material according to the present invention is a steel sheet and a resin covered steel sheet suitable for a thinned, deep-drawn and ironed can comprising Carbon in the range of 0.008% to 0.08%, Silicon of equal or less than 0.05%, Manganese of equal or less than 0.9%, Phosphorous of equal or less than 0.04%, Sulfur of equal or less than 0.04%, Aluminum of equal or less than 0.03%, Nitrogen of equal or less than 0.
    Type: Grant
    Filed: March 7, 2001
    Date of Patent: January 1, 2002
    Assignee: Toyo Kohan Co., Ltd.
    Inventors: Taizo Sato, Shigeyoshi Nishiyama
  • Publication number: 20010049781
    Abstract: A computer which performs parallel processing of a plurality of programs in a time-division fashion includes hardware resources divided into a plurality of areas, an evacuation unit which records identification information identifying a first program, and evacuates information stored in an area of said plurality of areas if the area is necessary for execution of a second program and is being used for execution of the first program, and a restoration unit which restores the evacuated information to the area based on the identification information when the second program comes to a halt or to an end.
    Type: Application
    Filed: January 25, 2001
    Publication date: December 6, 2001
    Inventors: Hideo Miyake, Atsuhiro Suga, Yasuki Nakamura, Masayuki Tsuji, Yasuhiro Yamazaki, Yoshimasa Takebe, Taizo Sato, Shinichiro Tago
  • Patent number: 6306229
    Abstract: An invar alloy steel sheet for shadow masks is provided which has improved etchability, an economical production method, a shadow mask made of the invar alloy steel sheet, and a color picture tube which incorporates the shadow mask. The invar alloy steel sheet is produced by hot working an alloy slab consisting of 33 top 40 wt % nickel with the balance being iron, and then subjecting the slab to a primary cold rolling at a rolling reduction ratio of not more than 80%, annealing at a temperature of at least 550° C., and subjecting the slab to a secondary cold rolling at a rolling reduction ratio of not more than 50%. The invar alloy steel sheet has a percentage of {100} texture of 60 to 80%.
    Type: Grant
    Filed: February 23, 2000
    Date of Patent: October 23, 2001
    Assignee: Toyo Kohan Co., Ltd.
    Inventors: Tsuneyuki Ide, Hironao Okayama, Hiroaki Ikenaga, Susumu Shigemasa, Yasuo Tahara, Taizo Sato, Akira Ikeda
  • Publication number: 20010027830
    Abstract: A stretched mask having a high tensile strength and favorable high-temperature creep properties and free from tape twist, and a material for the stretched mask. A low-carbon steel sheet containing 70 ppm to 170 ppm of nitrogen on a weight basis is heat-treated at a temperature at which recrystallization does not take place. The heat-treated material is provided with a resist pattern for forming apertures and subjected to etching to form apertures.
    Type: Application
    Filed: May 18, 2001
    Publication date: October 11, 2001
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Akira Makita, Yutaka Matsumoto, Taizo Sato, Yoshikazu Watanabe
  • Publication number: 20010008609
    Abstract: In a reciprocating compressor in which a suction valve (21) of a leaf valve is placed between a valve plate (16) and a cylinder block (12) to open and close a suction port (18) formed in the valve plate, the suction valve is previously bent to open the suction port in an initial state when the compressor is stopped. The cylinder block has a cylinder bore (11) with which the suction port is communicated and into which a piston (17) is inserted. When the piston performs reciprocating movement in the cylinder bore, the suction valve opens and closes the suction port in response to the reciprocating movement in a pulsation reducing manner.
    Type: Application
    Filed: January 16, 2001
    Publication date: July 19, 2001
    Inventors: Kenji Hashimoto, Yoshito Matsumura, Yoshinobu Ichikawa, Taizo Sato
  • Patent number: 6258496
    Abstract: A stretched mask having a high tensile strength and favorable high-temperature creep properties and free from tape twist, and a material for the stretched mask. A low-carbon steel sheet containing 70 ppm to 170 ppm of nitrogen on a weight basis is heat-treated at a temperature at which recrystallization does not take place. The heat-treated material is provided with a resist pattern for forming apertures and subjected to etching to form apertures.
    Type: Grant
    Filed: February 8, 1999
    Date of Patent: July 10, 2001
    Assignees: Toyo Kohan Co., Ltd., Dai Nippon Printing Co., Ltd.
    Inventors: Akira Makita, Yutaka Matsumoto, Taizo Sato, Yoshikazu Watanabe
  • Patent number: 5829024
    Abstract: A hierarchical memory system having a cache memory for storing a portion of data stored in a main memory. The cache memory is divided into hierarchically ordered primary and secondary cache memories. The primary cache memory being connected to a processor. The larger secondary cache memory being connected to the primary cache memory and to a bus connected to the main memory. When a cache miss-hit is made in the secondary cache memory, at the time of access by the processing unit, the secondary cache memory notifies the primary cache memory of an address of a replacement entry prior to seeking a data transfer. The primary cache memory, when it has an entry corresponding to the replacement entry, makes the corresponding entry the replacement entry.
    Type: Grant
    Filed: July 8, 1996
    Date of Patent: October 27, 1998
    Assignee: Fujitsu Limited
    Inventor: Taizo Sato
  • Patent number: 5678058
    Abstract: A vector processor including a vector register having a plurality of banks storing a plurality of elements of data, a plurality of vector operation units to perform a plurality of vector operations on the plurality of elements of data, a single mask register to store mask data indicating whether to mask the elements of data and controlling the vector operations performed on the elements of data by the plurality of vector operation units, a single decoder device, connected to the mask register, for generating a read address and a write address of the mask register, a serial-to-parallel converting device for receiving serial mask data from a second bus connected to the plurality of vector operation units, for converting the serial mask data into parallel mask data, and for writing the parallel mask data into the mask register at the write address generated by the decoder device, and a parallel-to-serial converting device for reading parallel mask data from the mask register at the read address generated by the
    Type: Grant
    Filed: October 21, 1996
    Date of Patent: October 14, 1997
    Assignee: Fujitsu Limited
    Inventor: Taizo Sato
  • Patent number: 5517633
    Abstract: A cache uses A bits of an offset portion which are not subjected to the address translation of the logical address and B bits of the portion other than the offset portion, which are subjected to an address translation. It has an address monitor portion having a tag portion corresponding to the tag portion of the CPU using only A bits of the offset portion of the set address which are used as the set address in the cache and having a 2.sup.B .times.N-way set associative structure and a portion for making said tag portion of the cache correspond to said tag portion of the address monitor portion, thereby performing management of N address stored in the tag portion of the address monitor portion and transmitting the result of the management of the address to the cache and for invalidating the corresponding recording portion of the tag in the cache.
    Type: Grant
    Filed: March 20, 1995
    Date of Patent: May 14, 1996
    Assignee: Fujitsu Limited
    Inventors: Hidenobu Ohta, Taizo Sato
  • Patent number: 5488710
    Abstract: A cache memory, and a data processor including the cache memory, for processing at least one variable length instruction from a memory and outputting processed information to a control unit, such as a central processing unit (CPU). The cache memory includes a unit for decoding an instruction length of a variable length instruction from the memory, and a unit for storing the variable length instruction from the memory, together with the decoded instruction length information. The variable length instruction and the instruction length information thereof are fed to the control unit. Accordingly, the cache memory enables the control unit to simultaneously decode a plurality of variable length instructions and thus realize high speed processing.
    Type: Grant
    Filed: February 10, 1992
    Date of Patent: January 30, 1996
    Assignee: Fujitsu Limited
    Inventors: Taizo Sato, Atsushi Fujihira
  • Patent number: 5465334
    Abstract: A processor which executes instructions using pipeline processing having an effective address calculation stage and an operation stage, at least one stage existing between the effective address calculation stage and the operation stage. A register temporarily stores data. A pipeline latch part includes a respective latch provided for, and respectfully corresponding to, each stage between the effective address calculation stage and the operation stage and includes a respective latch corresponding to the operation stage. During the effective address calculation stage, the pipeline latch part receives data stored in the register and transfers the received data through the each respective latch in accordance with the execution of instructions to provide the data to the respective latch corresponding to the operation stage when the operation stage performs an operation.
    Type: Grant
    Filed: September 16, 1993
    Date of Patent: November 7, 1995
    Assignee: Fujitsu Limited
    Inventor: Taizo Sato
  • Patent number: 5457803
    Abstract: A bit field logic operation unit which performs a logic operation accompanied by a masking operation comprises a logic operation part, a mask pattern generation part, and a bit map operation part. All parts are constituted by dynamic circuit constructions where the processes are performed in a preset period and an active period. The preset periods of the logic operation part and the mask pattern generation part are carried out simultaneously, and the active periods of the logic operation part and the mask pattern generation part and the preset period of the bit map operation part are carried out simultaneously.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: October 10, 1995
    Assignee: Fujitsu Limited
    Inventors: Yoshiyasu Sato, Taizo Sato
  • Patent number: 5274792
    Abstract: An information processing apparatus includes a decoder for decoding an instruction, a general purpose register part including a stack pointer and a plurality of general purpose registers, a special purpose register part including a plurality of special purpose registers, and a processing part coupled to the decoder, the general purpose register part and the special purpose register part for carrying out a predetermined process based on a decoded result from the decoder by selectively using a read out result of one of the general purpose register part and the special purpose register part. A decoding operation of the decoder, a read out operation of the general purpose register part and a read out operation of the special purpose register part are carried out in parallel.
    Type: Grant
    Filed: January 21, 1993
    Date of Patent: December 28, 1993
    Assignee: Fujitsu Limited
    Inventor: Taizo Sato