Patents by Inventor Toshimitsu Harada

Toshimitsu Harada 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: 8097366
    Abstract: An alkaline battery separator including 25 to 62% by mass of an alkali-resistance synthetic fiber, 5 to 25% by mass of a fibrillated organic solvent-spun cellulose fiber having a Canadian standard freeness value of 10 to 280 ml, and 33 to 50% by mass of a mercerized pulp having a Canadian standard freeness value of not less than 550 ml, wherein the fibrillated organic solvent-spun cellulose fiber intertwines with the mercerized pulp.
    Type: Grant
    Filed: February 23, 2006
    Date of Patent: January 17, 2012
    Assignee: Kuraray Co., Ltd.
    Inventors: Toshimitsu Harada, Hisashi Nagi, Hiroyuki Kawai, Masakazu Nishiyama
  • Patent number: 7985473
    Abstract: Provided is a planar paper for an adhesive tape, and an adhesive tape utilizing such planar paper as a backing, which has an elongation sufficient to allow the adhesive tape to be favorably adhered to an adherend surface without being accompanied by any lift and separation, but with consistently conforming to the curved surfaces and/or the rough surfaces; which is capable of providing a clear painting line left in a portion of a painted layer required in automobiles; which is capable of being easily cut by hand without requiring any tool as a blade; and which is also excellent in handleability. The planar paper comprises a polyvinyl alcohol-series fiber having a fiber breaking temperature in water of 92 to 125° C., a tenacity of 0.5 to 3.5 cN/dtex at 10% elongation, and a breaking elongation of 17 to 60%.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: July 26, 2011
    Assignee: Kuraray Co., Ltd.
    Inventors: Tomohiro Hayakawa, Hideo Hayashi, Masatoshi Takenoiri, Toshimitsu Harada
  • Patent number: 7846855
    Abstract: A nonwoven fabric containing a polyvinyl butyral fiber is provided. In particular, continuous fiber nonwoven fabrics, such as a melt-blown nonwoven fabric and a spunbonded nonwoven fabric, are preferred. By laminating a plurality of layers via an adhering layer made of such a nonwoven fabric and then heating, a laminate is obtained by a simple process. In particular, an interior material in which an inorganic fiber layer, a foam layer and a surface material layer are adhered together via the aforementioned type of adhering layers is a desirable embodiment. Such an interior material is excellent in rigidity, sound absorbency and thermal deformation resistance, and therefore is useful as an interior material to be used for cars, railway vehicles, vessels, and the like.
    Type: Grant
    Filed: March 23, 2006
    Date of Patent: December 7, 2010
    Assignees: Kuraray Co., Ltd., Kuraray Europe GmbH
    Inventors: Toshimitsu Harada, Soichi Obata, Hideo Hayashi, Yasurou Araida, Tomoaki Kimura, Martin Steuer
  • Patent number: 7754387
    Abstract: A separator for alkaline batteries which is obtained by bonding 5.0 to 45.0 g/m2 of a highly hygroscopic macromolecular compound of the crosslinking type having carboxyl group to a wetlaid nonwoven fabric comprising an alkali-resistant fiber, followed by crosslinking the macromolecular compound, wherein a silicate compound is added to the highly hygroscopic macromolecular compound of the crosslinking type in an amount of 1.0×10?4 to 10 mg/cm2 per unit area of the separator. By adding the silicate compound, absorption of the electrolyte is increased, the electrolyte can be held for a long time, the electric resistance of the separator itself can be kept small, growth of dendrite can be suppressed, short circuit due to the formed dendrite can be prevented, the volume of the negative electrode material can be increased by suppressing the thickness of the separator after absorbing the electrolyte, impact of dropping can be endured, and oxidative degradation in the alkaline dry cells can be suppressed.
    Type: Grant
    Filed: June 13, 2005
    Date of Patent: July 13, 2010
    Assignees: Kuraray Co., Ltd., Panasonic Corporation
    Inventors: Toshimitsu Harada, Hisashi Nagi, Hiroyuki Kawai, Seiji Wada, Eiji Tano
  • Publication number: 20100080988
    Abstract: Provided is a planar paper for an adhesive tape, and an adhesive tape utilizing such planar paper as a backing, which has an elongation sufficient to allow the adhesive tape to be favorably adhered to an adherend surface without being accompanied by any lift and separation, but with consistently conforming to the curved surfaces and/or the rough surfaces; which is capable of providing a clear painting line left in a portion of a painted layer required in automobiles; which is capable of being easily cut by hand without requiring any tool as a blade; and which is also excellent in handleability. The planar paper comprises a polyvinyl alcohol-series fiber having a fiber breaking temperature in water of 92 to 125° C., a tenacity of 0.5 to 3.5 cN/dtex at 10% elongation, and a breaking elongation of 17 to 60%.
    Type: Application
    Filed: December 3, 2009
    Publication date: April 1, 2010
    Applicant: KURARAY CO., LTD.
    Inventors: Tomohiro Hayakawa, Hideo Hayashi, Masatoshi Takenoiri, Toshimitsu Harada
  • Publication number: 20090068914
    Abstract: A nonwoven fabric containing a polyvinyl butyral fiber is provided. In particular, continuous fiber nonwoven fabrics, such as a melt-blown nonwoven fabric and a spunbonded nonwoven fabric, are preferred. By laminating a plurality of layers via an adhering layer made of such a nonwoven fabric and then heating, a laminate is obtained by a simple process. In particular, an interior material in which an inorganic fiber layer, a foam layer and a surface material layer are adhered together via the aforementioned type of adhering layers is a desirable embodiment. Such an interior material is excellent in rigidity, sound absorbency and thermal deformation resistance, and therefore is useful as an interior material to be used for cars, railway vehicles, vessels, and the like.
    Type: Application
    Filed: March 23, 2006
    Publication date: March 12, 2009
    Applicants: Kuraray Co., Ltd., KURARAY EUROPE GmbH
    Inventors: Toshimitsu Harada, Soichi Obata, Hideo Hayashi, Yasurou Araida, Tomoaki Kimura, Martin Steuer
  • Publication number: 20090017385
    Abstract: An alkaline battery separator comprising an alkali-resistance synthetic fiber, a fibrillated organic solvent-spun cellulose fiber having a Canadian standard freeness value of 10 to 280 ml, and a mercerized pulp having a Canadian standard freeness value of not less than 550 ml is prepared. In the separator, the proportion of the alkali-resistance synthetic fiber, the proportion of the fibrillated organic solvent-spun cellulose fiber, and the proportion of the mercerized pulp relative to the total amount of the separator are respectively 25 to 62% by mass, 5 to 25% by mass, and 33 to 50% by mass, provided that the total amount of the separator is 100% by mass. The alkali-resistance synthetic fiber may comprise a polyvinyl alcohol-series fiber having an average fiber fineness of not more than 1 dtex. The alkaline battery separator may further comprise a polyvinyl alcohol-series binder in a proportion of 3 to 20% by mass relative to the total amount of the separator.
    Type: Application
    Filed: February 23, 2006
    Publication date: January 15, 2009
    Applicant: Kuraray Co., Ltd.
    Inventors: Toshimitsu Harada, Hisashi Nagi, Hiroyuki Kawai, Masakazu Nishiyama
  • Publication number: 20080274409
    Abstract: A separator for alkaline batteries which is obtained by bonding 5.0 to 45.0 g/m2 of a highly hygroscopic macromolecular compound of the crosslinking type having carboxyl group to a wetlaid nonwoven fabric comprising an alkali-resistant fiber, followed by crosslinking the macromolecular compound, wherein a silicate compound is added to the highly hygroscopic macromolecular compound of the crosslinking type in an amount of 1.0×10?4 to 10 mg/cm2 per unit area of the separator. By adding the silicate compound, absorption of the electrolyte is increased, the electrolyte can be held for a long time, the electric resistance of the separator itself can be kept small, growth of dendrite can be suppressed, short circuit due to the formed dendrite can be prevented, the volume of the negative electrode material can be increased by suppressing the thickness of the separator after absorbing the electrolyte, impact of dropping can be endured, and oxidative degradation in the alkaline dry cells can be suppressed.
    Type: Application
    Filed: June 13, 2005
    Publication date: November 6, 2008
    Applicants: Kuraray Co., Ltd., Matsushita Electric Industrial Co., Ltd.
    Inventors: Toshimitsu Harada, Hisashi Nagi, Hiroyuki Kawai, Seiji Wada, Eiji Tano
  • Patent number: 5828986
    Abstract: A video camera, capable of being connected with a computer, for photographing animated images. The video camera includes: a camera main body for outputting image signals corresponding to the animated images; and a memory adapter, detachable from the video camera, for recording one of the animated images as a still picture. The memory adapter also sends back the image signals, corresponding to the still picture, to the video camera so that the video camera outputs the image signals corresponding to the still picture.
    Type: Grant
    Filed: March 29, 1996
    Date of Patent: October 27, 1998
    Assignee: Konica Corporation
    Inventors: Koichi Horigome, Toshimitsu Harada, Takashi Terauchi, Masaki Shimada, Masashi Saito
  • Patent number: 5481351
    Abstract: In an electrophotograpic recording apparatus, a charge supply unit and a light erasing unit are disposed in the stated order when viewed in the direction in which a photoreceptor rotates, at a location between a transfer unit and a bias cleaning unit, and light from the light erasing unit is projected onto a photoreceptor surface area except the charge supplied area. A developing apparatus of the type in which a cleaner section for removing and collecting residual toner on a photoreceptor is coupled through a toner transport pipe with a toner hopper of a developing unit, wherein a meshed foreign material collector, which may be vibrated, is disposed at a location in a residual toner collecting path ranging from the cleaner section, the toner transport pipe, and the toner hopper.
    Type: Grant
    Filed: March 17, 1994
    Date of Patent: January 2, 1996
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Katsuya Kawai, Masayasu Anzai, Toshimitsu Harada, Shinichi Nishino
  • Patent number: 5237377
    Abstract: A cleaning device for a dry electrophotographic device includes a cleaning brush brought into resilient contact with an object to be cleaned such as a photosensitive drum. A cleaning roll rotates while constantly being brought into contact with the cleaning brush and a cleaning blade is pressed against the cleaning roll to clean the cleaning roll. A rotation direction switching mechanism switches the rotation direction of the cleaning brush such that the rotation direction of the cleaning brush when cleaning the object, for example, during the formation of an image, is different from that when the brush is not cleaning the object.
    Type: Grant
    Filed: January 24, 1992
    Date of Patent: August 17, 1993
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Toshimitsu Harada, Sadaki Maeda, Shinichi Nishino, Toshitaka Ogawa, Masayasu Anzai
  • Patent number: 5212530
    Abstract: A cleaning unit for a xerographic printing machine, or the like. A system for mechanically or electrostatically removing objects, such a toner or paper particles in a printing machine from a photoreceptor or other member to be cleaned, includes a cleaning brush rotating in contact with the member to be cleaned, a cleaning roll brought into contact with the cleaning brush to electrostatically or magnetically remove toner from the cleaning brush, and a cleaning blade supported at the base by a blade holder. The cleaning blade is pressed against the cleaning roll, to remove toner deposited on the surface of the cleaning roll. The cleaning blade is a resilient, thin metal plate.
    Type: Grant
    Filed: November 29, 1991
    Date of Patent: May 18, 1993
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Toshimitsu Harada, Sadaki Maeda, Shinichi Nishino, Toshitaka Ogawa
  • Patent number: 4796561
    Abstract: In an electrophotographic developing device, its doctor blade disposed adjacent to a magnetic roll so as to control the thickness of a layer of magnetic developing agent conveyed by the magnetic roll has an edge which is curved in such a manner that the gap between the edge and the magnetic roll is a minimum in the vicinity of the middle of the magnetic roll, whereby the layer of magnetic developing agent is made uniform in thickness and the printing density is made uniform despite gravitational sagging of the roll.
    Type: Grant
    Filed: September 14, 1987
    Date of Patent: January 10, 1989
    Assignee: Hitachi Koki Company, Limited
    Inventors: Yasuo Takano, Hiroyoshi Tokoro, Junji Kobayashi, Masato Yamada, Toshimitsu Harada, Kensei Hosoya
  • Patent number: 4600949
    Abstract: A video camera comprising an image-forming lens system having an optical axis and a light-beam splitting means capable of splitting an incident light-beam from the image-forming lens system into a primary optical path along the optical axis and leading into a view finder means, and a secondary optical path bent at an angle to the primary optical path and leading into an electrical image-receiving means. There is provided a camera tube in the bent optical path and a view finder in the straight optical path. An electrical circuit means comprising printed circuit boards is arranged in a U-shape manner to cover three sides of the light-beam splitting means other than the side facing the secondary optical path.
    Type: Grant
    Filed: September 23, 1983
    Date of Patent: July 15, 1986
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Yukinori Koizumi, Toshimitsu Harada
  • Patent number: 4443084
    Abstract: The invention is directed to an arrangement controlling the film winding mechanism of a camera. In particular, the take-up amount of the film is monitored, and if the take-up amount of the film does not fall within the prescribed amount of film within a prescribed period of time, this is detected and a control circuit is actuated to stop the film-winding operation.
    Type: Grant
    Filed: October 15, 1981
    Date of Patent: April 17, 1984
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Toshimitsu Harada, Koji Watanabe