Patents by Inventor Shinichi Nishikawa

Shinichi Nishikawa 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: 7559214
    Abstract: An optical element manufacturing method has a preparation step of preparing a lower mold and an upper mold. The lower mold has an outer shape restricting surface for the optical element. A reference surface formation step of forms a positioning reference surface on a rim of the optical element by heating the outer shape restricting surface of the lower mold and dropping molten glass onto the lower mold surface so as to collide with the lower mold surface and spread to be in contact with the outer shape restricting surface. A pressing step forms the two opposed optical function surfaces of the optical element by pressing the glass. A temperature of the outer shape restricting surface in the reference surface formation step and the pressing step is higher than a temperature which is 100° C. less than a glass transition temperature (° C.) of the glass.
    Type: Grant
    Filed: July 22, 2003
    Date of Patent: July 14, 2009
    Assignee: Minolta Co., Ltd.
    Inventor: Shinichi Nishikawa
  • Patent number: 7263804
    Abstract: A vehicle door, wherein a drive unit for raising and lowering a glass plate is constructed so that a plurality of pulleys across which wires are laid are provided at upper and lower sides of a base panel. The glass plate is moved up and down by driving the wires, and the glass plate is prevented from moving in a vehicle inward direction when the door is closed. Wire fixing portions are prevented from being damaged by large upward and downward stroke movements of the glass plate Furthermore, the wires are prevented from slackening when the wires are driven and stopped by providing a supporting rod along a path of upward and downward movement of the glass plate, and a contact member which has no contact with the supporting rod. Trumpet-shaped guide portions are provided at hole edges of the wire fixing portions, and the V-shaped circumferential surfaces of a tensioner eliminates slack in the wires.
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: September 4, 2007
    Assignee: Kabushikikaisha Ansei
    Inventors: Koji Ishii, Shinichi Nishikawa, Takashi Nishio, Yoshihiro Ando
  • Patent number: 7234274
    Abstract: A vehicle door drive unit for raising and lowering a glass plate is constructed so that a plurality of pulleys across which wires extend are provided at upper and lower sides of a base panel. The glass plate is supported by a carrier plate which is connected to the wire ends. The glass plate is moved up and down by the wires and is prevented from excessively moving in a vehicle inward direction when the door is closed by a supporting rod positioned along an upward and downward path of the glass plate and a contact member. Trumpet shaped guide portions are formed at the edges of holes of the wire fixing portions of the carrier plate and the circumferential surfaces of a V-shaped tensioner are provided for eliminating slack in the wires.
    Type: Grant
    Filed: July 3, 2002
    Date of Patent: June 26, 2007
    Assignee: Kabushikikaisha Ansei
    Inventors: Koji Ishii, Shinichi Nishikawa, Takashi Nishio, Yoshihiro Ando
  • Publication number: 20070053885
    Abstract: It is intended to obtain a mesenchymal stem cell in the early stage of differentiation from a pluripotent stem cell differentiated in vitro. A mesenchymal stem cell is obtainable by: a) the step of culturing pluripotent stem cells, b) the step of confirming the appearance of a cell with stroma cell-like morphology, and c) the step of selecting and separating a PDGFR ?-positive and FLK1-negative cell.
    Type: Application
    Filed: May 28, 2004
    Publication date: March 8, 2007
    Inventors: Shinichi Nishikawa, Takumi Era
  • Publication number: 20060281136
    Abstract: It is intended to prepare endodermal stem cells by differentiation from multipotential stem cells followed by isolation. This object can be achieved by separating various endodermal stem cells having been differentiated from multipotential stem cells with the use of, as indications, a specific cell surface marker, an organizer-specific marker and the expression manner of E-cadherin.
    Type: Application
    Filed: May 20, 2004
    Publication date: December 14, 2006
    Inventors: Shinichi Nishikawa, Takumi Era
  • Patent number: 7104009
    Abstract: A vehicle door, wherein a drive unit for raising and lowering a glass plate is constructed so that a pluraity of pulleys across which wires are laid are provided at upper and lower sides of a base panel. The glass plate is moved up and down by driving the wires, the glass plate is prevented from moving in a vehicle inward direction when the door is closed. Wire fixing portions are prevented from being damaged by great upward and downward stroke movements of the glass plate. Furthermore, the wires are prevented from slackening when the wires are driven and stopped by a supporting rod along an upward and downward movement locus of the glass plate, and by a contact member which has no contact with the supporting rod. Trumpet-shaped guide portions are located at hole edges of the wire fixing portions, and the circumferential surfaces of a tensioner are V-shaped for eliminating slack in the wires.
    Type: Grant
    Filed: December 1, 2003
    Date of Patent: September 12, 2006
    Assignee: Kabushikikaisha Ansei
    Inventors: Koji Ishii, Shinichi Nishikawa, Takashi Nishio, Yoshihiro Ando
  • Patent number: 7050189
    Abstract: A network print system having a printer and a memory server connected through a communication network is capable of recovering from a printer error securely without re-transmitting data from a computer. The printer comprises an input unit for receiving print data from the communication network, an interpretation controller for converging the received print data into a file in a printer intermediate language, an expansion controller for expanding the file in the printer intermediate language into bit map data, a memory data input/output unit for exchanging data in the printer intermediate language with the memory server through the communication network, and a error detector for detecting a printer error. Simultaneously to the print output, the printer stores data in the printer intermediate language in the memory server, and reads back the data of pages which is not delivered in the case of an error.
    Type: Grant
    Filed: March 22, 2001
    Date of Patent: May 23, 2006
    Inventor: Shinichi Nishikawa
  • Publication number: 20050081448
    Abstract: The present invention provides a vehicle door, wherein a drive unit for raising and lowering a glass plate is constructed so that a plurality of pulleys across which wires are laid are provided at upper and lower sides of a base panel, the glass plate is moved up and down by driving the wires, the glass plate is prevented from moving in a vehicle inward direction when the door is closed, wire fixing portions are prevented from being damaged by great upward and downward stroke movements of the glass plate, and furthermore, the wires are prevented from slackening when the wires are driven and stopped. This is realized by providing a supporting rod along an upward and downward movement locus of the glass plate and a contact member which has no contact with the supporting rod, by forming trumpet-shaped guide portions at hole edges of the wire fixing portions, and by V-shaping the circumferential surfaces of a tensioner for eliminating slack of the wires.
    Type: Application
    Filed: November 12, 2004
    Publication date: April 21, 2005
    Applicant: Kabushikikaisha Ansei
    Inventors: Koji Ishii, Shinichi Nishikawa, Takashi Nishio, Yoshihiro Ando
  • Publication number: 20040231362
    Abstract: An optical element manufacturing method has a preparation step of preparing a lower mold having a lower mold surface for forming an optical function surface of an optical element to be manufactured and an upper mold having an upper mold surface for forming another optical function surface of the optical element, said lower mold having an outer shape restricting surface for the optical element or being combined with a member having the outer shape restricting surface, said upper mold being opposed to the lower mold; a reference surface formation step of forming a positioning reference surface on a rim of the optical element by heating the outer shape restricting surface of the lower mold or combined with the lower mold and the lower mold surface and dropping molten glass onto the lower mold surface so as to collide with the lower mold surface and spread to be in contact with the outer shape restricting surface; a pressing step of forming the two opposed optical function surfaces of the optical element by, afte
    Type: Application
    Filed: July 22, 2003
    Publication date: November 25, 2004
    Applicant: MINOLTA CO., LTD.
    Inventor: Shinichi Nishikawa
  • Publication number: 20040107644
    Abstract: The present invention provides a vehicle door, wherein a drive unit for raising and lowering a glass plate is constructed so that a plurality of pulleys across which wires are laid are provided at upper and lower sides of a base panel, the glass plate is moved up and down by driving the wires, the glass plate is prevented from moving in a vehicle inward direction when the door is closed, wire fixing portions are prevented from being damaged by great upward and downward stroke movements of the glass plate, and furthermore, the wires are prevented from slackening when the wires are driven and stopped. This is realized by providing a supporting rod along an upward and downward movement locus of the glass plate and a contact member which has no contact with the supporting rod, by forming trumpet-shaped guide portions at hole edges of the wire fixing portions, and by V-shaping the circumferential surfaces of a tensioner for eliminating slack of the wires.
    Type: Application
    Filed: December 1, 2003
    Publication date: June 10, 2004
    Applicant: Kabushikikaisha Ansei
    Inventors: Koji Ishii, Shinichi Nishikawa, Takashi Nishio, Yoshihiro Ando
  • Patent number: 6742364
    Abstract: A method of manufacturing a micro molten glass droplet, has the steps of, colliding a molten glass droplet with a micro through hole formed in a plate-shaped member; and pushing out at least part of the glass droplet to a reverse surface of the micro through hole as a micro droplet, thereby forming a glass droplet with a diameter of not more than 5 mm.
    Type: Grant
    Filed: August 17, 2001
    Date of Patent: June 1, 2004
    Assignee: Minolta Co., Ltd.
    Inventor: Shinichi Nishikawa
  • Publication number: 20030009948
    Abstract: The present invention provides a vehicle door, wherein a drive unit for raising and lowering a glass plate is constructed so that a plurality of pulleys across which wires are laid are provided at upper and lower sides of a base panel, the glass plate is moved up and down by driving the wires, the glass plate is prevented from moving in a vehicle inward direction when the door is closed, wire fixing portions are prevented from being damaged by great upward and downward stroke movements of the glass plate, and furthermore, the wires are prevented from slackening when the wires are driven and stopped. This is realized by providing a supporting rod along an upward and downward movement locus of the glass plate and a contact member which has no contact with the supporting rod, by forming trumpet-shaped guide portions at hole edges of the wire fixing portions, and by V-shaping the circumferential surfaces of a tensioner for eliminating slack of the wires.
    Type: Application
    Filed: July 3, 2002
    Publication date: January 16, 2003
    Inventors: Shinichi Nishikawa, Takashi Nishio, Yoshihiro Ando
  • Publication number: 20020053223
    Abstract: A method of manufacturing a micro molten glass droplet, has the steps of, colliding a molten glass droplet with a micro through hole formed in a plate-shaped member; and pushing out at least part of the glass droplet to a reverse surface of the micro through hole as a micro droplet, thereby forming a glass droplet with a diameter of not more than 5 mm.
    Type: Application
    Filed: August 17, 2001
    Publication date: May 9, 2002
    Inventor: Shinichi Nishikawa
  • Publication number: 20010051963
    Abstract: A network print system having a printer and a memory server connected through a communication network is capable of recovering from a printer error securely without re-transmitting data from a computer. The printer comprises an input unit for receiving print data from the communication network, an interpretation controller for converging the received print data into a file in a printer intermediate language, an expansion controller for expanding the file in the printer intermediate language into bit map data, a memory data input/output unit for exchanging data in the printer intermediate language with the memory server through the communication network, and a error detector for detecting a printer error. Simultaneously to the print output, the printer stores data in the printer intermediate language in the memory server, and reads back the data of pages which is not delivered in the case of an error.
    Type: Application
    Filed: March 22, 2001
    Publication date: December 13, 2001
    Inventor: Shinichi Nishikawa