Patents by Inventor Toshiaki Tsuboi

Toshiaki Tsuboi 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).

  • Patent number: 7298984
    Abstract: An image forming apparatus includes a developer that develops a latent image to form an image, a separation unit that separates image information of a job image by color upon writing a latent image of the job image, a comparison unit that compares the image information by color separated by the separation unit with a threshold value previously set with respect to an image concentration, and a driving condition determination unit that determines a driving condition of the developer using a result of comparison by the comparison unit.
    Type: Grant
    Filed: November 8, 2005
    Date of Patent: November 20, 2007
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Takashi Yukutake, Shuji Tanaka, Toshikazu Tsumita, Toshiaki Tsuboi
  • Publication number: 20060153583
    Abstract: An image forming apparatus includes a developer that develops a latent image to form an image, a separation unit that separates image information of a job image by color upon writing a latent image of the job image, a comparison unit that compares the image information by color separated by the separation unit with a threshold value previously set with respect to an image concentration, and a driving condition determination unit that determines a driving condition of the developer using a result of comparison by the comparison unit.
    Type: Application
    Filed: November 8, 2005
    Publication date: July 13, 2006
    Inventors: Takashi Yukutake, Shuji Tanaka, Toshikazu Tsumita, Toshiaki Tsuboi
  • Publication number: 20020184056
    Abstract: A health promotion practitioner support apparatus is provided. The health promotion practitioner support apparatus includes a part storing scenarios which includes health promotion information and health promotion timing for each of levels of readiness for change; a part obtaining data on lifestyles and the level of readiness for change of a client; a part preparing a health promotion schedule of the client from the scenario and the data, and outputting the health promotion schedule; and a part outputting health promotion information for the client according to operation to the health promotion schedule.
    Type: Application
    Filed: May 30, 2001
    Publication date: December 5, 2002
    Inventors: Toshiaki Tsuboi, Kouhei Toriu, Tomoshi Takada, Hiroshi Yoshikawa, Yumiko Nishimura, Yousuke Chikamoto
  • Patent number: 6148367
    Abstract: In allocating an area of a cache memory to each storage unit, proper allocation of the cache memory is made to each storage unit. If the amount of write-after data becomes equal to or more than a threshold value, an allocation limit is set to each disk unit. If CPU issues a data write request requiring the amount of data equal to or more than the allocation limit, the data write request is held in a wait state until the amount of write-after data becomes less than the allocation limit. Therefore, the allocation amount to the disk unit becomes neither too large nor too small. In this manner, proper allocation of the cache memory to each disk unit can be realized.
    Type: Grant
    Filed: December 24, 1996
    Date of Patent: November 14, 2000
    Assignee: Hitachi, Ltd.
    Inventors: Toshiaki Tsuboi, Akira Yamamoto, Shigeo Honma, Yoshihiro Asaka, Koji Ozawa, Hiroyuki Kitajima, Michio Miyazaki
  • Patent number: 5809542
    Abstract: An information processing system has a processor, a first storage unit, a controller connected between said processor and said first storage unit, and a second storage unit connected to said processor and for storing dump data, and a dump method thereof are disclosed. The controller manages updated regions of the first storage unit as write regions. In response to a dump request issued by the processor, the controller manages regions which are managed as the write regions and included in a dump portion as protected regions. If a write request for a region which is managed as protected region, the controller saves contents of the region to dump point file before executing a write operation, and release the region from the protected regions. The controller transfers contents of regions managed as protected track and contents of the dump point file to the processor as contents of regions to be dumped.
    Type: Grant
    Filed: January 5, 1995
    Date of Patent: September 15, 1998
    Assignees: Hitachi, Ltd., Hitachi Microcomputer System, Ltd.
    Inventors: Toshiaki Tsuboi, Akira Yamamoto, Shigeru Kishiro, Toshio Nakano
  • Patent number: 5638508
    Abstract: A data processing system for processing transactions, wherein a log record to be used for recovery of the system is written into a log file for system recovery in synchronism with the end of a transaction, and log records other than resident information are is written for a plurality of transactions into a log file for archives.
    Type: Grant
    Filed: March 9, 1994
    Date of Patent: June 10, 1997
    Assignees: Hitachi, Ltd., Hitachi Micro Computer Engineering, Ltd.
    Inventors: Sadasaburoh Kanai, Toshiaki Tsuboi, Hiroyuki Kitajima, Takashi Sumiyoshi
  • Patent number: 5623631
    Abstract: In allocating an area of a cache memory to each storage unit, proper allocation of the cache memory is made to each storage unit. If the amount of write-after data becomes equal to or more than a threshold value, an allocation limit is set to each disk unit. If CPU issues a data write request requiring the amount of data equal to or more than the allocation limit, the data write request is held in a wait state until the amount of write-after data becomes less than the allocation limit. Therefore, the allocation amount to the disk unit becomes neither too large nor too small. In this manner, proper allocation of the cache memory to each disk unit can be realized.
    Type: Grant
    Filed: February 3, 1995
    Date of Patent: April 22, 1997
    Assignees: Hitachi, Ltd., Hitachi Microcomputer System, Ltd.
    Inventors: Toshiaki Tsuboi, Akira Yamamoto, Shigeo Honma, Yoshihiro Asaka, Koji Ozawa, Hiroyuki Kitajima, Michio Miyazaki
  • Patent number: 5418929
    Abstract: In allocating an area of a cache memory to each storage unit, proper allocation of the cache memory is made to each storage unit. If the amount of write-after data becomes equal to or more than a threshold value, an allocation limit is set to each disk unit. If CPU issues a data write request requiring the amount of data equal to or more than the allocation limit, the data write request is held in a wait state until the amount of write-after data becomes less than the allocation limit. Therefore, the allocation amount to the disk unit becomes neither too large nor too small. In this manner, proper allocation of the cache memory to each disk unit can be realized.
    Type: Grant
    Filed: January 28, 1994
    Date of Patent: May 23, 1995
    Assignee: Hitachi, Ltd.
    Inventors: Toshiaki Tsuboi, Akira Yamamoto, Shigeo Honma, Yoshihiro Asaka, Koji Ozawa, Hiroyuki Kitajima, Michio Miyazaki
  • Patent number: 5307473
    Abstract: In allocating an area of a cache memory to each storage unit, proper allocation of the cache memory is made to each storage unit. If the amount of write-after data becomes equal to or more than a threshold value, an allocation limit is set to each disk unit. If CPU issues a data write request requiring the amount of data equal to or more than the allocation limit, the data write request is held in a wait state until the amount of write-after data becomes less than the allocation limit. Therefore, the allocation amount to the disk unit becomes neither too large nor too small. In this manner, proper allocation of the cache memory to each disk unit can be realized.
    Type: Grant
    Filed: February 10, 1992
    Date of Patent: April 26, 1994
    Assignees: Hitachi, Ltd., Hitachi Microcomputer System Ltd.
    Inventors: Toshiaki Tsuboi, Akira Yamamoto, Shigeo Honma, Yoshihiro Asaka, Koji Ozawa, Hiroyuki Kitajima, Michio Miyazaki
  • Patent number: 5257352
    Abstract: An input/output control apparatus connected to a plurality of input/output units such as disc systems and an input/output control method. A cache memory is divided into a plurality of storage areas for data management. Data stored in the disc systems are stored in the storage areas. In response to an output request from a HOST system to the disc systems, data outputted from the latter are stored in the storage areas of the cache memory. The data stored in the storage areas and outputted therefrom in response to the output request are transferred to the disc systems. The storage areas storing the data requested and not yet stored in the disc systems are grouped correspondingly to the disc systems where the output data are to be stored. The resulting group is managed as a first attribute group. Write-after processing for every disc units can be executed in parallel efficiently without involving high processing overhead.
    Type: Grant
    Filed: July 5, 1990
    Date of Patent: October 26, 1993
    Assignees: Hitachi, Ltd., Hitachi Microcomputer Engineering Ltd.
    Inventors: Akira Yamamoto, Toshiaki Tsuboi, Takao Sato, Yoshihiro Asaka, Shigeo Honma, Shigeru Kishiro, Michio Miyazaki, Yoshiaki Kuwahara, Hiroyuki Kitajima
  • Patent number: 5253351
    Abstract: In a control unit having a external storage device, a method for selecting a loading method of data stored in the cache memory into the cache memory in accordance with an access pattern to the data, and an apparatus therefor are disclosed. The selection of the loading method is selection of control mode or procedure in accordance with the loading method, and it is attained by a learn function.
    Type: Grant
    Filed: August 8, 1989
    Date of Patent: October 12, 1993
    Assignees: Hitachi, Ltd., Microcomputer Engineering Ltd.
    Inventors: Akira Yamamoto, Toshiaki Tsuboi, Shigeo Honma, Hiroyuki Kitajima, Akira Kurano, Masafumi Nozawa, Katsunori Nakamura, Kosaku Kambayashi, Toshio Nakano, Yoshiro Shiroyanagi