Patents by Inventor Seiji Ozawa

Seiji Ozawa 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: 20060128645
    Abstract: The present invention is to provide a method of treatment which inhibits proliferation and invasion of brain tumor cells in developing animal brain tumor cells, and a method for measuring proliferation/invasion activity of brain tumor cells, in the brain tumor cells, preferably, in glioblastoma. Proliferation and invasion of brain tumor cells are inhibited by regulating Ca2+ permeability by glutamate receptor subunits in developing animal brain tumor cells. Regulation of Ca2+ permeability by glutamate receptor subunits can be conducted by introducing the GluR2 gene into AMPA-type glutamate receptors in brain tumor cells. Further, the present invention provides a method for measuring proliferation/invasion activity of brain tumor cells by detecting/measuring the expression of glutamate receptor subunits in developing animal brain tumor cells.
    Type: Application
    Filed: August 8, 2003
    Publication date: June 15, 2006
    Inventors: Seiji Ozawa, Shogo Ishiuchi
  • Patent number: 6901230
    Abstract: A toner container has a hollow body having a small diameter mouth portion, a ramp surface at one end and a spiral. A removable lid is positioned at the mouth portion so as to close the mouth portion and a lug is provided at the lid.
    Type: Grant
    Filed: February 23, 2004
    Date of Patent: May 31, 2005
    Assignee: Ricoh Company, Ltd.
    Inventors: Hideo Ichikawa, Takeshi Saito, Sunao Ikeda, Nobuhiro Makita, Seiji Ozawa, Shigeru Yoshiki, Takaaki Yanagisawa
  • Publication number: 20040216040
    Abstract: A product information contrast system contrasts a plurality of items of product information that contain specifications indicating properties of products. The product information contrast system comprises a product information management unit which manages the plurality of items of product information of the products including a criterion product. A judgment unit determines whether specifications in the product information items of the criterion product are different from specifications in the product information items of at least one of the products managed by the product information management unit. A display control unit generates a visually recognizable display indication of differences in the specifications of the product information items based on results of the determination of the judgment unit.
    Type: Application
    Filed: March 2, 2004
    Publication date: October 28, 2004
    Applicant: RICOH COMPANY, LTD.
    Inventors: Mariko Aduma, Tetsuo Noji, Tetsuo Isoda, Seiji Ozawa, Manabu Satoh, Yoshihiro Sugiyama, Motonori Hanada
  • Publication number: 20040161267
    Abstract: A developer replenishing device for replenishing a developing device with a developer, and a developer container for use therewith. The developer container, or toner bottle, includes a shoulder portion adjoining a first end of a hollow body. The body is formed with a spiral guide for guiding a developer stored in the developer container. The shoulder portion forms a wall and includes an engaging portion engageable with driver that causes the body to rotate. The engaging portion includes a lug protruding from the shoulder portion which allows a characteristic of toner to be identified. The engaging portion has an outside surface of a guide portion that guides a developer stored in the developer container. Two engaging portions may be angularly spaced from each other by 180 degrees.
    Type: Application
    Filed: February 23, 2004
    Publication date: August 19, 2004
    Inventors: Hideo Ichikawa, Takeshi Saito, Sunao Ikeda, Nobuhiro Makita, Seiji Ozawa, Shigeru Yoshiki, Takaaki Yanagisawa
  • Patent number: 6751431
    Abstract: A developer replenishing device for replenishing a developing device with a developer, and a developer container for use therewith. The developer container, or toner bottle, includes a shoulder portion adjoining a first end of a hollow body. The body is formed with a spiral guide for guiding a developer stored in the developer container. The shoulder portion forms a wall and includes an engaging portion engageable with driver that causes the body to rotate. The engaging portion includes a lug protruding from the shoulder portion which allows a characteristic of toner to be identified. The engaging portion has an outside surface of a guide portion that guides a developer stored in the developer container. Two engaging portions may be angularly spaced from each other by 180 degrees.
    Type: Grant
    Filed: June 19, 2002
    Date of Patent: June 15, 2004
    Assignee: Ricoh Company, Ltd.
    Inventors: Hideo Ichikawa, Takeshi Saito, Sunao Ikeda, Nobuhiro Makita, Seiji Ozawa, Shigeru Yoshiki, Takaaki Yanagisawa
  • Publication number: 20030138273
    Abstract: A developer replenishing device for replenishing a developing device with a developer, and a developer container for use therewith. The developer container, or toner bottle, includes a shoulder portion adjoining a first end of a hollow body. The body is formed with a spiral guide for guiding a developer stored in the developer container. The shoulder portion forms a wall and includes an engaging portion engageable with driver that causes the body to rotate. The engaging portion includes a lug protruding from the shoulder portion which allows a characteristic of toner to be identified. The engaging portion has an outside surface of a guide portion that guides a developer stored in the developer container. Two engaging portions may be angularly spaced from each other by 180 degrees.
    Type: Application
    Filed: June 19, 2002
    Publication date: July 24, 2003
    Inventors: Hideo Ichikawa, Takeshi Saito, Sunao Ikeda, Nobuhiro Makita, Seiji Ozawa, Shigeru Yoshiki, Takaaki Yanagisawa
  • Patent number: 6418293
    Abstract: A developer replenishing device for replenishing a developing device with a developer, and a developer container for use therewith. The developer container, or toner bottle, includes a shoulder portion adjoining a first end of a hollow body. The body is formed with a spiral guide for guiding a developer stored in the developer container. The shoulder portion forms a wall and includes an engaging portion engageable with driver that causes the body to rotate. The engaging portion includes a lug protruding from the shoulder portion which allows a characteristic of toner to be identified. The engaging portion has an outside surface of a guide portion that guides a developer stored in the developer container. Two engaging portions may be angularly spaced from each other by 180 degrees.
    Type: Grant
    Filed: July 30, 2001
    Date of Patent: July 9, 2002
    Assignee: Ricoh Company, Ltd.
    Inventors: Hideo Ichikawa, Takeshi Saito, Sunao Ikeda, Nobuhiro Makita, Seiji Ozawa, Shigeru Yoshiki, Takaaki Yanagisawa
  • Publication number: 20020001485
    Abstract: A developer replenishing device for replenishing a developing device with a developer, and a developer container for use therewith. The developer container, or toner bottle, has a mouth portion at one end thereof which is smaller in diameter than a hollow cylindrical main body. At the end of the bottle provided with the mouth, a shoulder has the inner periphery thereof partly raised to the edge of the mouth portion to form a raised portion for scooping up a toner. In addition, a part of the inner periphery of the circumferential wall of the bottle which is contiguous with the raised portion is also raised toward the axis of the bottle about which the bottle is rotatable, thereby forming another raised portion. When the bottle is mounted to a bottle holder, which is included in the replenishing device, substantially horizontally with the mouth portion oriented sideways, the bottle is rotated to raise the toner from the bottom of the main body to the mouth portion.
    Type: Application
    Filed: July 30, 2001
    Publication date: January 3, 2002
    Applicant: Ricoh Company Ltd.
    Inventors: Hideo Ichikawa, Takeshi Saito, Sunao Ikeda, Nobuhiro Makita, Seiji Ozawa, Shigeru Yoshiki, Takaaki Yanagisawa
  • Patent number: 6289195
    Abstract: A developer replenishing device for replenishing a developing device with a developer, and a developer container for use therewith. The developer container, or toner bottle, has a mouth portion at one end thereof which is smaller in diameter than a hollow cylindrical main body. At the end of the bottle provided with the mouth portion, a shoulder has the inner periphery thereof partly raised to the edge of the mouth portion to form a raised portion for scooping up a toner. In addition, a part of the inner periphery of the circumferental wall of the bottle, which is contiguous with the raised portion, is also raised toward the axis of the bottle, about which the bottle is rotatable, thereby forming another raised portion. When the bottle is mounted on a bottle holder, which is included in the replienishing device, substantially horizontally with the mouth portion oriented sideways, the bottle is rotated to raise the toner from the bottom of the main body to the mouth portion.
    Type: Grant
    Filed: April 14, 2000
    Date of Patent: September 11, 2001
    Assignee: Ricoh Company, Ltd.
    Inventors: Hideo Ichikawa, Takeshi Saito, Sunao Ikeda, Nobuhiro Makita, Seiji Ozawa, Shigeru Yoshiki, Takaaki Yanagisawa
  • Patent number: 6075963
    Abstract: A developer replenishing device for replenishing a developing device with a developer, and a developer container for use therewith. The developer container, or toner bottle, has a mouth portion at one end thereof which is smaller in diameter than a hollow cylindrical main body. At the end of the bottle provided with the mouth, a shoulder has the inner periphery thereof partly raised to the edge of the mouth portion to form a raised portion for scooping up a toner. In addition, a part of the inner periphery of the circumferential wall of the bottle which is contiguous with the raised portion is also raised toward the axis of the bottle about which the bottle is rotatable, thereby forming another raised portion. When the bottle is mounted to a bottle holder, which is included in the replenishing device, substantially horizontally with the mouth portion oriented sideways, the bottle is rotated to raise the toner from the bottom of the main body to the mouth portion.
    Type: Grant
    Filed: May 6, 1999
    Date of Patent: June 13, 2000
    Assignee: Ricoh Company, Ltd.
    Inventors: Hideo Ichikawa, Takeshi Saito, Sunao Ikeda, Nobuhiro Makita, Seiji Ozawa, Shigeru Yoshiki, Takaaki Yanagisawa
  • Patent number: 5918090
    Abstract: A developer replenishing device for replenishing a developing device with a developer, and a developer container for use therewith. The developer container, or toner bottle, has a mouth portion at one end thereof which is smaller in diameter than a hollow cylindrical main body. At the end of the bottle provided with the mouth, a shoulder has the inner periphery thereof partly raised to the edge of the mouth portion to form a raised portion for scooping up a toner. In addition, a part of the inner periphery of the circumferential wall of the bottle which is contiguous with the raised portion is also raised toward the axis of the bottle about which the bottle is rotatable, thereby forming another raised portion. When the bottle is mounted to a bottle holder, which is included in the replenishing device, substantially horizontally with the mouth portion oriented sideways, the bottle is rotated to raise the toner from the bottom of the main body to the mouth portion.
    Type: Grant
    Filed: September 28, 1998
    Date of Patent: June 29, 1999
    Assignee: Ricoh Company, Ltd.
    Inventors: Hideo Ichikawa, Takeshi Saito, Sunao Ikeda, Nobuhiro Makita, Seiji Ozawa, Shigeru Yoshiki, Takaaki Yanagisawa
  • Patent number: 5878262
    Abstract: Disclosed is a program development support system so adapted as to integrally manage a variety of information necessary for the development of a program by creating necessary links between information such as source programs to be employed for the development of the program, program parts, tools, specifications, handling persons and so on, by managing such information as resource information and by retaining attribute information of the links.
    Type: Grant
    Filed: January 31, 1997
    Date of Patent: March 2, 1999
    Assignee: Hitachi Software Engineering Co., Ltd.
    Inventors: Tsutomu Shoumura, Hiroshi Suganuma, Tsutomu Funada, Seiji Ozawa, Takeshi Nii, Takashi Kido, Naofumi Mitsuhashi, Toshikazu Hirano
  • Patent number: 5822663
    Abstract: A developer replenishing device for replenishing a developing device with a developer, and a developer container for use therewith. The developer container, or toner bottle, has a mouth portion at one end thereof which is smaller in diameter than a hollow cylindrical main body. At the end of the bottle provided with the mouth, a shoulder has the inner periphery thereof partly raised to the edge of the mouth portion to form a raised portion for scooping up a toner. In addition, a part of the inner periphery of the circumferential wall of the bottle which is contiguous with the raised portion is also raised toward the axis of the bottle about which the bottle is rotatable, thereby forming another raised portion. When the bottle is mounted to a bottle holder, which is included in the replenishing device, substantially horizontally with the mouth portion oriented sideways, the bottle is rotated to raise the toner from the bottom of the main body to the mouth portion.
    Type: Grant
    Filed: November 18, 1996
    Date of Patent: October 13, 1998
    Assignee: Ricoh Company, Ltd.
    Inventors: Hideo Ichikawa, Takeshi Saito, Sunao Ikeda, Nobuhiro Makita, Seiji Ozawa, Shigeru Yoshiki, Takaaki Yanagisawa
  • Patent number: 5627631
    Abstract: A developer replenishing device for replenishing a developing device with a developer, and a developer container for use therewith. The developer container, or toner bottle, has a mouth portion at one end thereof which is smaller in diameter than a hollow cylindrical main body. At the end of the bottle provided with the mouth, a shoulder has the inner periphery thereof partly raised to the edge of the mouth portion to form a raised portion for scooping up a toner. In addition, a part of the inner periphery of the circumferential wall of the bottle which is contiguous with the raised portion is also raised toward the axis of the bottle about which the bottle is rotatable, thereby forming another raised portion. When the bottle is mounted to a bottle holder, which is included in the replenishing device, substantially horizontally with the mouth portion oriented sideways, the bottle is rotated to raise the toner from the bottom of the main body to the mouth portion.
    Type: Grant
    Filed: January 17, 1996
    Date of Patent: May 6, 1997
    Assignee: Ricoh Company, Ltd.
    Inventors: Hideo Ichikawa, Takeshi Saito, Sunao Ikeda, Nobuhiro Makita, Seiji Ozawa, Shigeru Yoshiki, Takaaki Yanagisawa
  • Patent number: 5500719
    Abstract: A developer replenishing device for replenishing a developing device with a developer, and a developer container for use therewith. The developer container, or toner bottle, has a mouth portion at one end thereof which is smaller in diameter than a hollow cylindrical main body. At the end of the bottle provided with the mouth, a shoulder has the inner periphery thereof partly raised to the edge of the mouth portion to form a raised portion for scooping up a toner. In addition, a part of the inner periphery of the circumferential wall of the bottle which is contiguous with the raised portion is also raised toward the axis of the bottle about which the bottle is rotatable, thereby forming another raised portion. When the bottle is mounted to a bottle holder, which is included in the replenishing device, substantially horizontally with the mouth portion oriented sideways, the bottle is rotated to raise the toner from the bottom of the main body to the mouth portion.
    Type: Grant
    Filed: February 10, 1995
    Date of Patent: March 19, 1996
    Assignee: Ricoh Company, Ltd.
    Inventors: Hideo Ichikawa, Takeshi Saito, Sunao Ikeda, Nobuhiro Makita, Seiji Ozawa, Shigeru Yoshiki, Takaaki Yanagisawa
  • Patent number: 5455662
    Abstract: A developer replenishing device for replenishing a developing device with a developer, and a developer container for use therewith. The developer container, or toner bottle, has a mouth portion at one end thereof which is smaller in diameter than a hollow cylindrical main body. At the end of the bottle provided with the mouth, a shoulder has the inner periphery thereof partly raised to the edge of the mouth portion to form a raised portion for scooping up a toner. In addition, a part of the inner periphery of the circumferential wall of the bottle which is contiguous with the raised portion is also raised toward the axis of the bottle about which the bottle is rotatable, thereby forming another raised portion. When the bottle is mounted to a bottle holder, which is included in the replenishing device, substantially horizontally with the mouth portion oriented sideways, the bottle is rotated to raise the toner from the bottom of the main body to the mouth portion.
    Type: Grant
    Filed: December 28, 1993
    Date of Patent: October 3, 1995
    Assignee: Ricoh Company, Ltd.
    Inventors: Hideo Ichikawa, Takeshi Saito, Sunao Ikeda, Nobuhiro Makita, Seiji Ozawa, Shigeru Yoshiki, Takaaki Yanagisawa
  • Patent number: 4573614
    Abstract: A toner vessel for use in a copying machine includes a square dish-shaped vessel body which is open at the upper part, is provided with an outwardly projecting flange at the peripheral edge of said opening and receives the toner therein. A cover sheet is folded on itself to define an upper part and a lower part. The opening of the vessel body is covered with the lower part of the folded cover sheet and the latter's periphery is fitted on said flange. The surface of the upper part, in the vicinity of the fore end of the upper part, is adhered to the back surface of a cover plate arranged movably in the horizontal direction on the surface of the cover sheet upper part.
    Type: Grant
    Filed: August 26, 1983
    Date of Patent: March 4, 1986
    Assignee: Ricoh, Ltd
    Inventor: Seiji Ozawa
  • Patent number: 4164307
    Abstract: A cap with a supply stopper for use with ordinary containers comprising a detachable double cap, that is, an outer cap and an inner cap which is used as a supply cap having a supply opening and a supply stopper. By an engagement mechanism of the upper cap and the inner cap, when the upper cap is fastened, the supply stopper is firmly pressed against the supply opening so that the leakage of contents in the container during storage or transportation is completely prevented.
    Type: Grant
    Filed: April 25, 1977
    Date of Patent: August 14, 1979
    Assignee: Ricoh Company Limited
    Inventors: Masanaga Imamura, Hisashi Sakai, Hiroaki Sugiyama, Seiji Ozawa