Patents by Inventor Junichi Hamada

Junichi Hamada 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: 20040154708
    Abstract: The present invention provides a ferritic stainless steel casting and a sheet thereof excellent in deep drawability, punch stretchability and ridging resistance and a method for producing the casting and the sheet. In the present invention, a chemical composition is controlled so that the amounts of C, N, Si, Mn, P and Ti may be reduced to the utmost for securing high workability and, on the basis of the chemical composition, the roping and ridging of a steel sheet product is reduced by adding Mg, thus dispersing Mg containing oxides that accelerate the formation of nuclei for solidification and, resultantly, suppressing the development of coarse columnar crystals in a casting.
    Type: Application
    Filed: November 25, 2003
    Publication date: August 12, 2004
    Inventors: Akihiko Takahashi, Junichi Hamada, Ken Kimura, Takashi Morohoshi, Yoshihito Yamada, Toyohiko Kakihara, Satoshi Hashimoto
  • Patent number: 6768882
    Abstract: A method of controlling a fixing temperature of a fixing device having a heat roller provided with a heat source and a first temperature detector provided at the vicinity of the heat roller, and having a pressure roller, which is in pressure contact with the heat roller, provided with a second temperature sensor at the vicinity of the pressure roller, having the steps of; detecting a temperature of the pressure roller by the second temperature detector; and varying a control temperature of the heat roller according to a detected temperature of the pressure roller.
    Type: Grant
    Filed: August 8, 2002
    Date of Patent: July 27, 2004
    Assignee: Konica Corporation
    Inventors: Tetsuko Omoto, Junichi Hamada, Kiyoaki Kawamoto, Haruo Iwahashi, Kazuhiko Uneme
  • Patent number: 6747554
    Abstract: In a network surveillance unit, a video input unit inputs image information output from a video output device such as a camera or a switcher. A coded image storage unit codes and accumulates the image information. An alarm management unit detects the presence or absence of alarm generation from an alarm generating device, and stores the alarm information. A communication unit receives a request from a display terminal through a network, and transmits the coded image accumulated in the coded image storage unit or the alarm information accumulated in the alarm management unit according to the request.
    Type: Grant
    Filed: January 20, 2000
    Date of Patent: June 8, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Mamoru Higashimura, Manabu Nakamura, Junichi Hamada, Motohiro Misawa
  • Publication number: 20040055673
    Abstract: A ferritic stainless steel sheet excellent in press formability and operability, characterized by: containing appropriate amounts of C, N, Cr, Si, Mn, P, S, Al, Ti and V, with the balance consisting of Fe and unavoidable impurities; having a solid lubricating film or films on one or both of the surfaces; and having a ratio Z, defined as Z=Z1/Z2, of less than 0.5, a tensile strength of 450 MPa or less and an average r-value of 1.7 or more, wherein Z1 is a friction coefficient of the surface of a solid lubricating film and Z2 that of the surface of a reference material coated with neither a coating nor lubricating oil. In the ferritic stainless steel sheet, the amounts of Sol-Ti and Insol-V may be regulated to appropriate ranges, wherein Sol-Ti means the amount of Ti existing in the state of solid solution in steel and Insol-V means the amount of V existing in the state of precipitation in steel.
    Type: Application
    Filed: August 5, 2003
    Publication date: March 25, 2004
    Inventors: Ken Kimura, Masao Kikuchi, Masayuki Tendo, Junichi Hamada, Satoshi Akamatsu
  • Patent number: 6678484
    Abstract: An image forming apparatus and method using a toner containing toner particles having a coefficient of shape falling within a range of 1.0 to 1.6 of an amount of at least 65% by number, and having no protrusion of an amount of at least 50% by number, the image forming apparatus including a charging device for uniformly charging a photoreceptor, a developing device for developing an image obtained by imagewise exposure with the toner, a transfer device for transferring a toner image onto a transfer material, a fixing device for fixing, and a cleaning device for cleaning the photoreceptor after the transfer of a toner image, wherein when a toner image which is not to be transferred is formed on the photoreceptor, image formation is performed after cleaning is done a plurality of times for an area on which the toner image has been formed in the previous process.
    Type: Grant
    Filed: May 21, 2002
    Date of Patent: January 13, 2004
    Assignee: Konica Corporation
    Inventors: Yasushi Koshimura, Yukiko Omori, Junichi Hamada, Mitsugu Nemoto
  • Publication number: 20030231589
    Abstract: When a transport rate Rs is updated, in the case where the updated transport rate Rs is within a variable range (Rc<Rs<U×Rc, and U>1) defined by a current encoding rate Rc, FEC (Forward Error Correction) data sending rate Rf is updated (Rf=Rs−Rc) without updating the current encoding rate Rc. On the other hand, in the case where an Rc update timer set to three seconds, for example, is timed out, the encoding rate Rc is updated using a minimum value Rs_min of the transport rate up to that time (Rc=V×Rs_min, and 0<V<1). Even when the transport rate Rs greatly varies to be out of the variable range, the encoding rate Rc is updated in the same manner.
    Type: Application
    Filed: June 6, 2003
    Publication date: December 18, 2003
    Inventors: Tomoaki Itoh, Takao Yamaguchi, Harumine Yoshiba, Naoyuki Otoshi, Manabu Nakamura, Junichi Hamada
  • Patent number: 6591075
    Abstract: A cleaning method of a toner image carrying body, includes the steps of: bringing a discharging member formed in a shape of flexible plate having electric conductivity, which is electrically grounded or to which a discharging voltage is applied, into contact with the toner image carrying body, thereby discharging a toner on the toner image carrying body; and operating a cleaning device on the toner image carrying body whereby cleaning the toner.
    Type: Grant
    Filed: February 20, 2002
    Date of Patent: July 8, 2003
    Assignee: Konica Corporation
    Inventors: Junichi Koiso, Atsushi Ogane, Junichi Hamada, Yukiko Omori, Mitsugu Nemoto, Kazuhiko Sato
  • Publication number: 20030091360
    Abstract: In a method of controlling a fixing device having a heating roller containing a heat source, at least one supporting roller spaced from the heating roller, a fixing belt trained about the heating roller and the supporting roller, and a pressing roller placed to form a nipping area between the fixing belt and the pressing roller, giving a pressing force to the heating roller or the supporting roller through the fixing belt, the method includes the steps of: presetting a desired glossiness of fixed images; detecting a temperature of the pressing roller; calculating a target heating roller temperature from the preset glossiness of fixed images, the detected temperature of the pressing roller, a calculated loaded nipping time, a false nipping time, and a loaded nipping surface pressure; and controlling an operating status of the heat source according to the calculated target heating roller temperature.
    Type: Application
    Filed: October 18, 2002
    Publication date: May 15, 2003
    Applicant: Konica Corporation
    Inventors: Masahiro Onodera, Hiroshi Fuma, Junichi Hamada
  • Publication number: 20030039480
    Abstract: A method of controlling a fixing temperature of a fixing device having a heat roller provided with a heat source and a first temperature detector provided at the vicinity of the heat roller, and having a pressure roller, which is in pressure contact with the heat roller, provided with a second temperature sensor at the vicinity of the pressure roller, having the steps of; detecting a temperature of the pressure roller by the second temperature detector; and varying a control temperature of the heat roller according to a detected temperature of the pressure roller.
    Type: Application
    Filed: August 8, 2002
    Publication date: February 27, 2003
    Inventors: Tetsuko Omoto, Junichi Hamada, Kiyoaki Kawamoto, Haruo Iwahashi, Kazuhiko Uneme
  • Publication number: 20020191986
    Abstract: An image forming apparatus using a toner containing toner particles having a coefficient of shape falling within a range of 1.0 to 1.6 of an amount of at least 65% by number, and having no protrusion of an amount of at least 50% by number, the image forming apparatus including a charging device for uniformly charging a photoreceptor, a developing device for developing an image obtained by imagewise exposure with the toner, a transfer device for transferring a toner image onto a transfer material, a fixing device for fixing, and a cleaning device for cleaning the photoreceptor after the transfer of a toner image, wherein when a toner image which is not to be transferred is formed on the photoreceptor, image formation is performed after cleaning is done a plurality of times for an area on which the toner image has been formed in the previous process.
    Type: Application
    Filed: May 21, 2002
    Publication date: December 19, 2002
    Inventors: Yasushi Koshimura, Yukiko Omori, Junichi Hamada, Mitsugu Nemoto
  • Publication number: 20020150406
    Abstract: A cleaning method of a toner image carrying body, includes the steps of: bringing a discharging member formed in a shape of flexible plate having electric conductivity, which is electrically grounded or to which a discharging voltage is applied, into contact with the toner image carrying body, thereby discharging a toner on the toner image carrying body; and operating a cleaning device on the toner image carrying body whereby cleaning the toner.
    Type: Application
    Filed: February 20, 2002
    Publication date: October 17, 2002
    Inventors: Junichi Koiso, Atsushi Ogane, Junichi Hamada, Yukiko Omori, Mitsugu Nemoto, Kazuhiko Sato
  • Patent number: 6108052
    Abstract: An automatic tuning apparatus capable of automatically switching the tuning mode of a tuner circuit, automatically arranging various signal data in or after completion of tuning and arbitrarily and automatically arranging various signal data by the user comprises a SYNC discrimination circuit (11) discriminating whether a video signal system is the NTSC system or another system, a tuning mode switching circuit (12) for switching the tuning mode, and a color discrimination circuit (13) receiving a color bust signal (identical signal) for discriminating whether the video signal system is the PAL system or the SECAM system. As to the NTSC system, the PAL system, the SECAM system and the SECAM-L system, the user may not set the tuning mode of tuning means, whereby an automatic tuning apparatus imposing no burden on the user can be obtained.
    Type: Grant
    Filed: December 18, 1998
    Date of Patent: August 22, 2000
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Noboru Arikane, Tetsuo Sugano, Kimitoshi Hongoh, Isamu Okugawa, Katsushi Shimamoto, Junichi Hamada, Keiichiro Shirakashi
  • Patent number: 6034743
    Abstract: An automatic tuning apparatus capable of automatically switching the tuning mode of a tuner circuit, automatically arranging various signal data in or after completion of tuning and arbitrarily and automatically arranging various signal data by the user comprises a SYNC discrimination circuit (11) discriminating whether a video signal system is the NTSC system or another system, a tuning mode switching circuit (12) for switching the tuning mode, and a color discrimination circuit (13) receiving a color bust signal (identic signal) for discriminating whether the video signal system is the PAL system or the SECAM system. As to the NTSC system, the PAL system, the SECAM system and the SECAM-L system, the user may not set the tuning mode of tuning circuit, whereby an automatic tuning apparatus imposing no burden on the user can be obtained.
    Type: Grant
    Filed: December 18, 1998
    Date of Patent: March 7, 2000
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Noboru Arikane, Tetsuo Sugano, Kimitoshi Hongoh, Isamu Okugawa, Katsushi Shimamoto, Junichi Hamada, Keiichiro Shirakashi
  • Patent number: 6002451
    Abstract: An automatic tuning apparatus is capable of automatically switching a tuning mode of a tuner circuit, automatically arranging various signal data in or after completion of tuning and arbitrarily and automatically arranging various signal data by a user. The apparatus comprises a SYNC discrimination circuit (11) for discriminating whether or not a video signal system is a NTSC system or another system, a tuning mode switching circuit (12) for switching a tuning mode, and a color discrimination circuit (13) for receiving a color burst signal (identic signal) for discriminating whether the video signal system is a PAL system or a SECAM system. As to the NTSC system, the PAL system, the SECAM system and a SECAM-L system, the user may not set the tuning mode of tuning means, whereby an automatic tuning apparatus imposing no burden on the user can be provided.
    Type: Grant
    Filed: December 18, 1998
    Date of Patent: December 14, 1999
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Noboru Arikane, Tetsuo Sugano, Kimitoshi Hongoh, Isamu Okugawa, Katsushi Shimamoto, Junichi Hamada, Keiichiro Shirakashi
  • Patent number: 5959700
    Abstract: An automatic tuning apparatus capable of automatically switching the tuning mode of a tuner circuit, automatically arranging various signal data in or after completion of tuning and arbitrarily and automatically arranging various signal data by the user comprises a SYNC discrimination circuit (11) discriminating whether a video signal system is the NTSC system or another system, a tuning mode switching circuit (12) for switching the tuning mode, and a color discrimination circuit (13) receiving a color bust signal (identic signal) for discriminating whether the video signal system is the PAL system or the SECAM system. As to the NTSC system, the PAL system, the SECAM system and the SECAM-L system, the user may not set the tuning mode of tuning circuit, whereby an automatic tuning apparatus imposing no burden on the user can be obtained.
    Type: Grant
    Filed: December 29, 1995
    Date of Patent: September 28, 1999
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Noboru Arikane, Tetsuo Sugano, Kimitoshi Hongoh, Isamu Okugawa, Katsushi Shimamoto, Junichi Hamada, Keiichiro Shirakashi
  • Patent number: 5379100
    Abstract: A cleaning device has a plurality of cleaning blades capable of coming into contact with an image carrier; a rotatable supporting shaft on which the blades are affixed; and a blade replacement mechanism that rotates the supporting shaft and thereby replaces the blade that is in contact with the image carrier with another blade by rotating the supporting shaft. The blade replacement mechanism includes a supporting shaft mover for moving a blade between a position in which the blade comes into pressure contact with the image carrier and a position in which the blade separated from the image carrier; a moving controller connected with the supporting shaft mover; and a rotator for rotating the blade supporting shaft when the blade takes a position in which the blade separates from the image carrier.
    Type: Grant
    Filed: September 9, 1993
    Date of Patent: January 3, 1995
    Assignee: Konica Corporation
    Inventors: Tomoo Kudo, Junichi Hamada, Toshiya Sato