Patents by Inventor Sadao Kamei

Sadao Kamei 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: 5332342
    Abstract: A cutter for use in an electrode tip dresser, which has a cutter holder for holding the cutter and dresses an electrode tip for a resistance welding apparatus, has a rising portion which has a cutting tooth for cutting a front peripheral portion of the electrode tip and a flat portion which faces a front end surface of the electrode tip. The flat portion has a single cutting tooth for cutting the front end surface of the electrode tip. The single cutting tooth extends from that central point of the cutter as and origin which coincides with an axis of rotation of the cutter holder towards a predetermined radial direction. An origin portion of the single cutting tooth further extends beyond the central point towards a direction which is opposite to the radial direction.
    Type: Grant
    Filed: March 25, 1992
    Date of Patent: July 26, 1994
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Hiroyuki Kizaki, Kazuo Arai, Sadao Kamei, Toyoji Yamada, Takeshi Okubo, Kenji Takahashi, Yukihiro Yaguchi, Tadashi Takeo, deceased
  • Patent number: 4931382
    Abstract: A silver halide color photographic light-sensitive material containing a combination of a pyrazolo-azole magenta coupler and a specific dye image stabilizing agent is disclosed. The stabilizing agent is effective to improve fastness of a dye image formed by the coupler to light, heat and moisture.
    Type: Grant
    Filed: September 12, 1989
    Date of Patent: June 5, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masakazu Morigaki, Toshio Kawagishi, Kiyoshi Nakazyo, Nobuo Seto, Sadao Kamei
  • Patent number: 4886738
    Abstract: A silver halide color photographic material comprising a support having thereon at least one silver halide photographic emulsion layer and at least one layer containing colloidal silver, wherein said colloidal silver-containing layer comprises at least one compound selected from compounds of general formula (I) and (II) below, and at least one photosensitive or non-photosensitive layer selected from a silver halide photosensitive layer positioned farthest from said support and any layers positioned between said farthest photosensitive layer and said support comprises a silver halide emulsion containing internally-fogged or surface-fogged silver halide grains: ##STR1## wherein the substituent groups on general formula (I) and (II) are as defined in the specification.
    Type: Grant
    Filed: October 5, 1987
    Date of Patent: December 12, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Naoyasu Deguchi, Sadao Kamei, Kensuke Goda, Sadanobu Shuto, Yasuhiro Hayashi
  • Patent number: 4735893
    Abstract: A silver halide color photographic light-sensitive material containing a combination of a pyrazolo-azole magenta coupler and a specific dye image stabilizing agent is disclosed. The stabilizing agent is effective to improve fastness of a dye image formed by the coupler to light, heat and moisture.
    Type: Grant
    Filed: June 10, 1985
    Date of Patent: April 5, 1988
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masakazu Morigaki, Toshio Kawagishi, Kiyoshi Nakazyo, Nobuo Seto, Sadao Kamei
  • Patent number: 4546074
    Abstract: A silver halide color light sensitive material with a silver iodobromide photographic emulsion layer is described. The silver iodobromide photographic emulsion contains at least one compound represented by the general formula (I): ##STR1## and at least one compound represented by the general formula (II): ##STR2## (in the general formulae (I) and (II), all symbols are as defined in the appended claims). The surface of silver iodobromide grains of the surface low iodine content type in the photographic emulsion is adsorbed from 10.sup.-7 to 10.sup.-3 mol of iodide ion per mol of silver halide. The silver iodobromide emulsion is spectrally sensitized in a red region without causing any undesirable problems.
    Type: Grant
    Filed: October 5, 1983
    Date of Patent: October 8, 1985
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Sadao Kamei, Yuichi Ohashi, Toshinao Ukai, Kiyohiko Yamamuro, Haruo Takei