Patents by Inventor Masahiko Saito

Masahiko Saito 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: 20030113140
    Abstract: A color electrophotographic apparatus includes a photosensitive member, an exposing device for forming an image on the photosensitive member, developing devices for different colors, and a transfer member. The developing devices include a toner storing chamber, a toner carrying member for forming a toner layer, a regulating member for regulating an amount of toner attached to the toner carrying member, a toner supply chamber having a supply member therein, a toner recovery chamber having an rotating member therein, and a separating member for separating the toner supply chamber from the toner recovery chamber so that the toner supply chamber is disposable above the toner recovery chamber.
    Type: Application
    Filed: January 31, 2003
    Publication date: June 19, 2003
    Inventors: Toru Miyasaka, Kazushige Oonishi, Masahiko Saito, Tadashi Okano, Shoji Takeya
  • Publication number: 20030115241
    Abstract: A distributed computing system having a plurality of computers different from each other in performance, load, and type, uniformly manages local priority schemes adapted in the respective computers by utilizing the concept of “urgency” or “time limit”. Each of the computers includes a priority level conversion procedure for performing a conversion between an urgency level and a priority level of processing in accordance with the performance and the load of the computer, and a priority level changing procedure for changing a priority level of a program, which executes the processing, in accordance with a priority level indicated by the priority level conversion procedure.
    Type: Application
    Filed: January 15, 2003
    Publication date: June 19, 2003
    Inventors: Masahiko Saito, Takanori Yokoyama, Masaru Shimada, Kunihiko Tsunedomi, Tomoaki Nakamura
  • Publication number: 20030109246
    Abstract: There are provided a cellular telephone device and transmitter for setting a cellular telephone to answering mode and a telephone section to sleep status when communication forbidding information is received, and restoring telephone section operation when there is no communication forbidding information and canceling silent mode and answering mode; and automatically setting silent mode and answering mode when a communication forbidding signal is received, and maintaining the telephone section operation status when there is no communication forbidding information, and canceling silent mode and answering mode.
    Type: Application
    Filed: April 10, 2002
    Publication date: June 12, 2003
    Inventors: Hiroshi Shimizu, Masahiko Saito, Atsushi Ogino, Jun Maeoka, Nobuaki Kohinata, Shinichi Obata
  • Patent number: 6578064
    Abstract: A distributed computing system --,--; having a plurality of computers that differ from each other in terms of performance, load, and type, uniformly manages local priority schemes adapted in the respective computers by utilizing the concept of “urgency” or “time limit”. Each of the computers includes a priority level conversion procedure for performing a conversion between an urgency level and a priority level of processing in accordance with the performance and the load of the computer, and a priority level changing procedure for changing a priority level of a program, which executes the processing, in accordance with a priority level indicated by the priority level conversion procedure.
    Type: Grant
    Filed: October 7, 1998
    Date of Patent: June 10, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Masahiko Saito, Takanori Yokoyama, Masaru Shimada, Kunihiko Tsunedomi, Tomoaki Nakamura
  • Patent number: 6569588
    Abstract: A toner for use in a color electrophotographic system ensures a sufficient offset resistance without oil being supplied, and meets requirements for color development, transparency and durability to withstand commercial use. The toner for an electrophotographic system has a resin 1 consisting of two or more resin mixtures having a different degree of crosslinking, the overall occupancy rate of mold releasing agent 3 present as a domain in one particle of the toner is 1 to 10%, and the average dispersion diameter of the mold releasing agent is 10 to 50% of the toner particle diameter.
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: May 27, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Akiko Oikawa, Akira Shimada, Toru Miyasaka, Masahiko Saito
  • Patent number: 6560435
    Abstract: An intermediate transfer element has at least one or more elastic layers and a toner releasing layer provided on the surface of the elastic layer and has a surface shape including minute projections up to 60 &mgr;m and at least 20 &mgr;m high. By providing the intermediate transfer element with such projections, easy separation with respect to a poorly separable recording medium, such as thin paper is achieved, and an image free from image defects, such as white speckles.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: May 6, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Masashi Yamamoto, Koichi Niwa, Tetsuo Ishikawa, Shinichi Hosaka, Masahiro Nakano, Masahiko Saito, Toru Miyasaka
  • Patent number: 6554840
    Abstract: The present invention relates to a medical scalpel for incising a spherical biological tissue comprising a shank and a planar blade portion integrated with the shank. The planar blade portion has a first face and a second face opposed in parallel as a whole with each other. The planar blade portion has a pointed end to thereby show a reverse-V profile and has, on both sides of such pointed end, an edge in parallel as a whole with the first face and the second face, the blade portion being formed so as to have a ratio of the partial thickness thereof on one side of a virtual flat plane surrounded by said edge to the total thickness thereof within a range of from 75 to 93%.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: April 29, 2003
    Assignee: Mani, Inc.
    Inventors: Kanji Matsutani, Masahiko Saito
  • Publication number: 20030079205
    Abstract: If a plurality of operating systems are running in one computer and each of those operating systems has its own managed time, which is different from others, then trace log information items collected by those operating systems and merged in order of their generated times may not be as they are generated actually. In order to avoid such a problem, therefore, the present invention provides an operating system management system with recording means for storing a check point trace in the operation trace information of each of those operating systems, thereby finding the correspondence among those check point traces by searching the operation trace information item of each operating system, then adding such additional information as a time difference, a counter value, etc. to the operation trace information.
    Type: Application
    Filed: July 5, 2002
    Publication date: April 24, 2003
    Inventors: Takeshi Miyao, Hirokazu Kasashima, Tomoaki Nakamura, Hiroshi Ohno, Tadashi Kamiwaki, Masahiko Saito, Taro Inoue
  • Patent number: 6549731
    Abstract: An image forming apparatus is capable of preventing with certainty the loading of a developing device an incorrect loading portion from being operated. The image forming apparatus includes a latent image holding body forming an electrostatic latent image, a developing device developing the electrostatic latent image to form a visible toner image, the developing device being detachably loaded in the image forming apparatus, a transfer device transferring the developed image onto a printing medium and a fixing device for fixing the transferred image. The image forming device can prevent an incorrect developing device loading in the image forming apparatus from being placed in a development enabled condition and can detect an active state of prevention.
    Type: Grant
    Filed: August 23, 2000
    Date of Patent: April 15, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Tomofumi Yoshida, Masahiko Saito, Akira Sasaki, Koichi Sato, Satoshi Narita, Yoshitaro Ishii
  • Patent number: 6546485
    Abstract: An operating system (OS) supports logical storage and comprises a framework and a plurality of modules to realize exchange of modules including a memory management module. The OS exchanges modules online and has a logical address space as well as a fixed physical space whose physical addresses and logical addresses are equal to each other, and the fixed physical space has the framework and an inheritance buffer. Information is inherited between old and new modules to be exchanged, by the inheritance buffer.
    Type: Grant
    Filed: March 5, 1999
    Date of Patent: April 8, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Kunihiko Tsunedomi, Tadashi Kamiwaki, Masahiko Saito, Keiji Kuwahara
  • Publication number: 20030063929
    Abstract: A picture image forming apparatus comprising a photoreceptor belt driven by a drive device, a plurality of developing devices for forming toner picture images on the photoreceptor belt, an intermediate transfer device, to a surface of which toner picture images on the photoreceptor belt are overlappingly transferred plural times when a picture image is to be formed on a single page, and a transfer roller for pushing a sheet against the intermediate transfer device in order to transfer toner picture images to the sheet, and wherein the intermediate transfer device is an intermediate transfer belt contacted by the photoreceptor belt to be driven thereby, and the intermediate transfer belt is trained around a photoreceptor-side roller and a transfer-side roller for pushing the sheet against the transfer roller, and wherein a diameter d2 of the transfer-side roller is smaller than a diameter d1 of the photoreceptor-side roller.
    Type: Application
    Filed: September 11, 2002
    Publication date: April 3, 2003
    Inventors: Shunichi Oohara, Kazuhiro Wakamatsu, Akira Sasaki, Kazuo Kikuchi, Masahiko Saito, Atsushi Onose, Akira Shimada, Masashi Yamamoto, Masaru Nakano, Shogo Matsumoto
  • Publication number: 20030046324
    Abstract: A plurality of tasks are managed by being classified into a communication task group, a control task group, and a management task group for management. An execution order of the plurality of tasks is switched by a group unit and, in accordance with a switched task group, information obtained from a LAN or information obtained from each device is processed by a CPU.
    Type: Application
    Filed: March 20, 2002
    Publication date: March 6, 2003
    Inventors: Shoji Suzuki, Kunihiko Tsunedomi, Satoru Funaki, Masahiko Saito, Yasuyuki Kojima, Takanori Yokoyama, Atsushi Ito
  • Patent number: 6516171
    Abstract: A color electrophotographic apparatus having a photosensitive member, an exposing device for forming an electrostatic latent image on the photosensitive member, four developing devices which attach toner on the photosensitive member and form a toner image and a transfer member for transferring the toner image onto a printing medium. The four developing devices include respectively a developing device for a yellow image, a magenta image, cyan image, and a black image. Each developing device includes a toner storing chamber for storing toner of a nonmagnetic one-component developer, a toner carrying member for forming a toner layer of the toner, a regulating member for regulating an amount of toner attached to the toner carrying member, a toner recovery chamber having an agitating member for agitating recovered toner, and a separating member for separating a toner supply chamber for the toner carrying member from the toner recovery chamber.
    Type: Grant
    Filed: November 14, 2001
    Date of Patent: February 4, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Toru Miyasaka, Kazushige Oonishi, Masahiko Saito, Tadashi Okano, Shoji Takeya
  • Publication number: 20020198851
    Abstract: A communication system to which a method for charging a user based on the fact that the user got advertisement information from a base station and dropped in at a shop associated with the advertisement information can be applied and a method for calculating an advertisement fee. A server system has a communication section transmitting and receiving data via a network, a storage section storing advertisement information, a storage section storing information relating to a base station therein, and a storage section storing information about an advertiser as customer information. The system transmits advertisement information requested by an advertiser to distribute it to a base station specified by the advertiser and calculates an advertisement fee charged to the advertiser based on a customer history received from an exclusive device installed at the shop associated with the advertisement.
    Type: Application
    Filed: August 20, 2001
    Publication date: December 26, 2002
    Inventors: Koji Hashimoto, Masahiko Saito, Shigeru Matsuo, Yasuyuki Kojima
  • Publication number: 20020176726
    Abstract: An electrophotographic image forming system having a form cassette for storing forms, a transfer unit for forming an image, a feeder for feeding the forms to the transfer unit and a fusing device for fusing transferred image of the form. The electrophotographic image forming system provides in a path for feeding the form with unfused colored particles (toner) deposited thereon, a form guide so as to contact the non-printing area of the surface of the form with unfused colored particles (toner) deposited thereon.
    Type: Application
    Filed: July 30, 2002
    Publication date: November 28, 2002
    Inventors: Yoshio Ohuchi, Kazuhiro Wakamatsu, Hisao Suka, Katsumi Kumada, Chikara Hiraoka, Shizuo Tsuruta, Yoshitaro Ishii, Akira Sasaki, Masahiko Saito, Seiji Okunomiya, Tetsunori Kaneko, Masashi Yamamoto
  • Publication number: 20020133241
    Abstract: Consumption power control is provided for a system LSI made of a combination of a plurality of reusable logic circuit modules, i.e., Intellectual Property (IP) cores. Hardware resources such as interfaces and registers for the consumption power control of other IP cores are prepared and controlled by software for the consumption power control of a system LSI. The consumption power can be controlled at an IP core level. A method is provided which facilitates a system LSI designer to enter a consumption power control specification of a system LSI when the system LSI is configured.
    Type: Application
    Filed: September 27, 2001
    Publication date: September 19, 2002
    Inventors: Yoshitaka Takahashi, Masahiko Saito, Hidemitsu Naya, Mutsumi Kikuchi, Takashi Hotta
  • Publication number: 20020120884
    Abstract: The present invention provides a multi-computer fault detection system comprising a plurality of computers in communication with each other, the computers comprising, a processor, a plurality of operating systems executed by the processor and a main memory for storing a task executed on one of the operating systems wherein the monitoring is whether a fault has occurred in another one of the operating systems wherein at least one of the computers with the fault alerts another one of the computers.
    Type: Application
    Filed: August 14, 2001
    Publication date: August 29, 2002
    Inventors: Tetsuaki Nakamikawa, Masahiko Saito, Takanori Yokoyama, Hiroshi Ohno
  • Publication number: 20020110747
    Abstract: The object of the present invention is to provide the toner for color electrophotographic system, wherein said toner ensures a sufficient offset resistance without oil being supplied, and meets requirements for color development, transparency and durability to withstand commercial use.
    Type: Application
    Filed: February 26, 2001
    Publication date: August 15, 2002
    Inventors: Akiko Oikawa, Akira Shimada, Toru Miyasaka, Masahiko Saito
  • Publication number: 20020073411
    Abstract: A controller to which a plurality of apparatus can be connected has an apparatus discriminating unit for discriminating a type and/or the number of the apparatus connected to the controller. The controller further has an application discriminating unit for discriminating, based on the type and/or the number of the apparatuses discriminated by the apparatus discriminating unit, an application corresponding to the type and/or the number of the apparatuses.
    Type: Application
    Filed: February 26, 2001
    Publication date: June 13, 2002
    Inventors: Kunihiko Tsunedomi, Shoji Suzuki, Tsutomu Yamada, Takanori Yokoyama, Masahiko Saito, Hidemitsu Naya, Satoru Funaki, Hiroshi Arita, Yoshinori Ohkura, Tetsuaki Nakamikawa
  • Publication number: 20020044049
    Abstract: An on-vehicle breakdown-warning report system is disclosed. an occurrence of break-down is detected and judged based on a signal in an electronic control system installed on a control apparatus for an engine ignition system, a charging system, an engine fuel system, a engine cooling system, a power transmission system, and an oil lubricating system of an automobile or a diagnosis display system; and a diagnostic data is sent to an information terminal device of a diagnosis and maintenance agency or a service company having a diagnosis and maintenance agency as a contents information by using an on-vehicle mobile communication apparatus, and an action for an emergency measures and a maintenance schedule is asked.
    Type: Application
    Filed: August 30, 2001
    Publication date: April 18, 2002
    Applicant: Hitachi, Ltd.,
    Inventors: Masahiko Saito, Kozo Nakamura, Toshio Manaka, Takashi Nakahara