Patents by Inventor Seiichi Katoh

Seiichi Katoh 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: 20080094680
    Abstract: Method of deflecting light includes the steps of providing a substrate and forming a supporting member on the substrate. Next forming step forms electrodes at predetermined positions on the substrate. Next forming step forms a plate-like-shaped thin film member including light reflecting means. Placing step places the plate-like-shaped thin film member on the supporting member so that an opposite surface thereof faces the electrodes. Forming step forms space regulating members on edges of the substrate for regulating a space formed above the substrate in which the plate-like-shaped thin film member is freely movable. Applying step applies predetermined voltages to the electrodes to change a tilt direction of the plate-like-shaped thin film member in accordance with the voltages applied to deflect the input light in an arbitrary direction.
    Type: Application
    Filed: December 7, 2007
    Publication date: April 24, 2008
    Inventors: Takeshi NANJYO, Seiichi Katoh, Kouichi Ohtaka
  • Publication number: 20080081880
    Abstract: A polyamic acid composition, containing polyamic acid and polyaniline particles, with reduced fluctuation of properties after production; a preparation method for the same; a polyimide resin having reduced fluctuation of resistance properties, superior mechanical properties and superior surface smoothness; a semiconductive member, and an image-forming apparatus having the semiconductive member as a belt. A polyamic acid composition, including a polyamic acid, polyaniline particles having a fibrous region with an aspect ratio of between approximately 1 to approximately 100 or less, a dopant, and a solvent.
    Type: Application
    Filed: September 12, 2007
    Publication date: April 3, 2008
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Hiroshi Miyamoto, Shoichi Morita, Seiichi Katoh
  • Patent number: 7349145
    Abstract: An optical deflection device includes a substrate; a plurality of regulating members including upper portions including stoppers; a fulcrum member serving as an electrode; a plate member; and a plurality of electrodes. The plurality of regulating members, the fulcrum member, and the plurality of electrodes are provided on the substrate, with the plate member approximately opposite to the plurality of electrodes and movable in a space formed by the substrate, the fulcrum member, and the stoppers. The plate member includes unfixed edge portions, a light reflecting region, and a conductive layer electrically connected to the fulcrum member. By fixing at least a part of the plurality of electrodes to predetermined potentials and changing a potential of the fulcrum member, the plate member is displaced around the fulcrum member by electrostatic attraction force, and a light incident in the light reflecting region in a direction is deflected and reflected in another direction.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: March 25, 2008
    Assignee: Ricoh Company, Ltd.
    Inventors: Seiichi Katoh, Takeshi Nanjyo, Koichi Ohtaka
  • Patent number: 7345823
    Abstract: An optical system is disclosed, including: an optical deflecting array including a plurality of optical deflecting devices arranged in a two-dimensional array, each of optical deflecting devices displacing a member having an optical reflection area and deflecting light, so that an incoming light flux entering the optical reflection area is deflected to a reflection direction being changed, a light source illuminating the optical deflecting array, and a projection lens projecting reflected light from the optical deflecting array based on color information. Each of the optical deflecting devices deflects light to two-axis directions, incoming light fluxes having different colors enter each of the optical deflecting devices from two directions respectively corresponding to two deflection axes, and are reflected by each of the optical deflecting devices based on the color information; and each of reflected light fluxes is led to the projection lens for a respective arbitrary time.
    Type: Grant
    Filed: October 19, 2005
    Date of Patent: March 18, 2008
    Assignee: Ricoh Company, Ltd.
    Inventors: Takeshi Nanjo, Akihiro Yamakage, Masaaki Ishiyama, Seiichi Katoh, Koichi Ohtaka
  • Patent number: 7342702
    Abstract: Method of deflecting light includes the steps of providing a substrate and forming a supporting member on the substrate. Next forming step forms electrodes at predetermined positions on the substrate. Next forming step forms a plate-like-shaped thin film member including light reflecting means. Placing step places the plate-like-shaped thin film member on the supporting member so that an opposite surface thereof faces the electrodes. Forming step forms space regulating members on edges of the substrate for regulating a space formed above the substrate in which the plate-like-shaped thin film member is freely movable. Applying step applies predetermined voltages to the electrodes to change a tilt direction of the plate-like-shaped thin film member in accordance with the voltages applied to deflect the input light in an arbitrary direction.
    Type: Grant
    Filed: April 27, 2006
    Date of Patent: March 11, 2008
    Assignee: Ricoh Company, Ltd.
    Inventors: Takeshi Nanjyo, Seiichi Katoh, Kouichi Ohtaka
  • Patent number: 7333256
    Abstract: Method of deflecting light includes the steps of providing a substrate and forming a supporting member on the substrate. Next forming step forms electrodes at predetermined positions on the substrate. Next forming step forms a plate-like-shaped thin film member including light reflecting means. Placing step places the plate-like-shaped thin film member on the supporting member so that an opposite surface thereof faces the electrodes. Forming step forms space regulating members on edges of the substrate for regulating a space formed above the substrate in which the plate-like-shaped thin film member is freely movable. Applying step applies predetermined voltages to the electrodes to change a tilt direction of the plate-like-shaped thin film member in accordance with the voltages applied to deflect the input light in an arbitrary direction.
    Type: Grant
    Filed: March 7, 2007
    Date of Patent: February 19, 2008
    Assignee: Ricoh Company, Ltd.
    Inventors: Takeshi Nanjyo, Seiichi Katoh, Kouichi Ohtaka
  • Publication number: 20080018982
    Abstract: An actuator is disclosed that has a contacting part smaller than a processing limit of a lithography technique, and is able to reduce a contacting area or a contacting length of the contacting part during operation, reduce a sticking force induced by contact, and decrease a driving voltage of the actuator. The actuator includes an operating part and a contacting part in contact with the operating part. The contacting part is formed by overlapping a first pattern on an end of a second pattern. The first pattern has a solid structure, and the size of an upper portion of the solid structure of the first pattern on the second pattern is less than a processing resolving power.
    Type: Application
    Filed: July 11, 2007
    Publication date: January 24, 2008
    Inventors: Takeshi Nanjyo, Seiichi Katoh, Koichi Ohtaka
  • Patent number: 7277217
    Abstract: Bearing portions having an approximately arc shape are provided on a lower surface of a plate-shaped member. In the bearing portions, stoppers of a regulating member are embedded. With the engagement of the lower surface of the plate-shaped member and the apex of a pivot member and the engagement of an inner surface of the bearing portions and a lower surface of the stoppers, the plate-shaped member is rotatably supported with the apex of the pivot member as a center. With a side surface of the regulating member 109 facing a side surface of the bearing portions, the position of the plate-shaped member in a rotation axis direction is regulated.
    Type: Grant
    Filed: March 1, 2007
    Date of Patent: October 2, 2007
    Assignee: Ricoh Company, Ltd.
    Inventors: Seiichi Katoh, Takeshi Nanjyo, Koichi Ohtaka
  • Publication number: 20070206268
    Abstract: Bearing portions having an approximately arc shape are provided on a lower surface of a plate-shaped member. In the bearing portions, stoppers of a regulating member are embedded. With the engagement of the lower surface of the plate-shaped member and the apex of a pivot member and the engagement of an inner surface of the bearing portions and a lower surface of the stoppers, the plate-shaped member is rotatably supported with the apex of the pivot member as a center. With a side surface of the regulating member 109 facing a side surface of the bearing portions, the position of the plate-shaped member in a rotation axis direction is regulated.
    Type: Application
    Filed: March 1, 2007
    Publication date: September 6, 2007
    Inventors: Seiichi Katoh, Takeshi Nanjyo, Koichi Ohtaka
  • Publication number: 20070146854
    Abstract: Method of deflecting light includes the steps of providing a substrate and forming a supporting member on the substrate. Next forming step forms electrodes at predetermined positions on the substrate. Next forming step forms a plate-like-shaped thin film member including light reflecting means. Placing step places the plate-like-shaped thin film member on the supporting member so that an opposite surface thereof faces the electrodes. Forming step forms space regulating members on edges of the substrate for regulating a space formed above the substrate in which the plate-like-shaped thin film member is freely movable. Applying step applies predetermined voltages to the electrodes to change a tilt direction of the plate-like-shaped thin film member in accordance with the voltages applied to deflect the input light in an arbitrary direction.
    Type: Application
    Filed: March 7, 2007
    Publication date: June 28, 2007
    Inventors: Takeshi Nanjyo, Seiichi Katoh, Kouichi Ohtaka
  • Patent number: 7215452
    Abstract: Method of deflecting light includes the steps of providing a substrate and forming a supporting member on the substrate. Next forming step forms electrodes at predetermined positions on the substrate. Next forming step forms a plate-like-shaped thin film member including light reflecting means. Placing step places the plate-like-shaped thin film member on the supporting member so that an opposite surface thereof faces the electrodes. Forming step forms space regulating members on edges of the substrate for regulating a space formed above the substrate in which the plate-like-shaped thin film member is freely movable. Applying step applies predetermined voltages to the electrodes to change a tilt direction of the plate-like-shaped thin film member in accordance with the voltages applied to deflect the input light in an arbitrary direction.
    Type: Grant
    Filed: April 17, 2006
    Date of Patent: May 8, 2007
    Assignee: Ricoh Company, Ltd.
    Inventors: Takeshi Nanjyo, Seiichi Katoh, Kouichi Ohtaka
  • Publication number: 20070091416
    Abstract: An optical deflecting device includes a plate-like member having a light reflective area and a conductor layer. The plate-like member rotates with substantially the middle portion thereof made a fulcrum to change an inclination direction thereof and thereby a reflection direction of a light flux incident to the light reflective area is changed. A first electrode group and a second electrode group are arranged so as to oppose the conductor layer of the plate-like member, respectively, and to sandwich a position corresponding to a position of the fulcrum of the plate-like member. Each electrode group includes a control electrode controlling starting of the plate-like member and a drive electrode driving the plate-like member.
    Type: Application
    Filed: October 19, 2006
    Publication date: April 26, 2007
    Inventors: Seiichi Katoh, Takeshi Nanjyo, Koichi Ohtaka
  • Publication number: 20070025740
    Abstract: The present invention provides an intermediate transfer belt comprising a polyimide resin comprising polyaniline, wherein the absolute maximum length of the largest particle of the polyaniline is approximately 10.0 ?m or less, a preparation thereof, and an image-forming device comprising the intermediate transfer belt.
    Type: Application
    Filed: April 5, 2006
    Publication date: February 1, 2007
    Applicant: Fuji Xerox Co., Ltd.
    Inventors: Seiichi Katoh, Hiroshi Miyamoto, Tsuyoshi Miyamoto, Shoichi Morita, Toshie Furuya
  • Patent number: 7166486
    Abstract: A center beam which is formed out of a thin film constituted to be combined with a light reflection film provided on one surface of the center beam, which has both ends fixed and which is deformed by an electronic force; a substrate electrode which is opposed to the center beam through a gap formed on the other surface of the center beam; an opposed surface which is a surface of the substrate electrode opposed to the center beam modulating the incident light on the light reflection film, the opposed surface restricting deformation of the center beam due to application of a driving voltage to the substrate electrode by abutting on the center beam; and a substrate which has the substrate electrode having the opposed surface, formed in a concave section, and which holds a to-be-held section of the center beam, are provided.
    Type: Grant
    Filed: August 3, 2005
    Date of Patent: January 23, 2007
    Assignee: Ricoh Company, Ltd.
    Inventors: Kouichi Ohtaka, Seiichi Katoh, Takeshi Nanjyo, Masanori Horike, Eiichi Ohta
  • Patent number: 7167290
    Abstract: An optical deflection device is disclosed that is able to drive a mirror therein to move smoothly. In the optical deflection device, notches are formed in the mirror, and when the notches hit against a bearing member, the mirror is stopped, thus preventing the mirror from being out of position in the horizontal direction. In addition, eaves at the top of the bearing member prevent the mirror from being out of position in the upward direction. Further, a ridge acting as a fulcrum prevents the mirror from being out of position in the downward direction. Moreover, the bearing member limits movement of the mirror in the bearing direction. Therefore, the mirror can rotate smoothly until it hits against the electrodes, and the mirror is rotatable but not out of position.
    Type: Grant
    Filed: December 27, 2004
    Date of Patent: January 23, 2007
    Assignee: Ricoh Company, Ltd.
    Inventors: Seiichi Katoh, Takeshi Nanjo, Koichi Ohtaka
  • Publication number: 20060239009
    Abstract: A light deflector includes a substrate; a plurality of control members provided at edge parts of the substrate, the control members having upper parts where stoppers are situated; a fulcrum member provided on an upper surface of the substrate, the fulcrum member having a top part; a plate-shaped member movably provided in a space formed by the substrate, the fulcrum member and the stopper, the plate-shaped member having a light reflection area, no fixed end, and a conductive layer; and a plurality of electrodes provided on the substrate, the electrodes facing the conductive layer of the plate-shaped member.
    Type: Application
    Filed: April 19, 2006
    Publication date: October 26, 2006
    Inventors: Takeshi Nanjyo, Seiichi Katoh, Koichi Ohtaka
  • Patent number: 7113321
    Abstract: A miniaturized and highly integrated optical deflection apparatus is realized in which the number of electrodes for driving the optical deflection apparatus is reduced. The optical deflection apparatus implements a sheet member that is electrically floating and plural electrodes that are implemented on a substrate. The sheet member includes a member having a light reflection region and an electret member that is charged at a predetermined electric potential. The sheet member is tilted by applying an electric potential that is substantially equivalent to an electric potential of the electret member to one of the electrodes and applying a ground potential to another one of the electrodes.
    Type: Grant
    Filed: April 13, 2004
    Date of Patent: September 26, 2006
    Assignee: Ricoh Company, Ltd.
    Inventors: Takeshi Nanjyo, Seiichi Katoh, Kouichi Ohtaka
  • Patent number: 7099060
    Abstract: Method of deflecting light includes the steps of providing a substrate and forming a supporting member on the substrate. Next forming step forms electrodes at predetermined positions on the substrate. Next forming step forms a plate-like-shaped thin film member including light reflecting means. Placing step places the plate-like-shaped thin film member on the supporting member so that an opposite surface thereof faces the electrodes. Forming step forms space regulating members on edges of the substrate for regulating a space formed above the substrate in which the plate-like-shaped thin film member is freely movable. Applying step applies predetermined voltages to the electrodes to change a tilt direction of the plate-like-shaped thin film member in accordance with the voltages applied to deflect the input light in an arbitrary direction.
    Type: Grant
    Filed: April 5, 2005
    Date of Patent: August 29, 2006
    Assignee: Ricoh Company, Ltd.
    Inventors: Takeshi Nanjyo, Seiichi Katoh, Kouichi Ohtaka
  • Publication number: 20060187514
    Abstract: Method of deflecting light includes the steps of providing a substrate and forming a supporting member on the substrate. Next forming step forms electrodes at predetermined positions on the substrate. Next forming step forms a plate-like-shaped thin film member including light reflecting means. Placing step places the plate-like-shaped thin film member on the supporting member so that an opposite surface thereof faces the electrodes. Forming step forms space regulating members on edges of the substrate for regulating a space formed above the substrate in which the plate-like-shaped thin film member is freely movable. Applying step applies predetermined voltages to the electrodes to change a tilt direction of the plate-like-shaped thin film member in accordance with the voltages applied to deflect the input light in an arbitrary direction.
    Type: Application
    Filed: April 17, 2006
    Publication date: August 24, 2006
    Inventors: Takeshi Nanjyo, Seiichi Katoh, Kouichi Ohtaka
  • Publication number: 20060187515
    Abstract: Method of deflecting light includes the steps of providing a substrate and forming a supporting member on the substrate. Next forming step forms electrodes at predetermined positions on the substrate. Next forming step forms a plate-like-shaped thin film member including light reflecting means. Placing step places the plate-like-shaped thin film member on the supporting member so that an opposite surface thereof faces the electrodes. Forming step forms space regulating members on edges of the substrate for regulating a space formed above the substrate in which the plate-like-shaped thin film member is freely movable. Applying step applies predetermined voltages to the electrodes to change a tilt direction of the plate-like-shaped thin film member in accordance with the voltages applied to deflect the input light in an arbitrary direction.
    Type: Application
    Filed: April 27, 2006
    Publication date: August 24, 2006
    Inventors: Takeshi Nanjyo, Seiichi Katoh, Kouichi Ohtaka