Patents by Inventor Hiroshi Saitoh

Hiroshi Saitoh 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: 8218997
    Abstract: A cleaning member includes a core bar, an elastic coating layer, and high-friction coefficient parts provided on both ends of the cleaning member. The high-friction coefficient parts include an elastic material. Outer peripheries of the high-friction coefficient parts are inclined with respect to an axial direction of the core bar. The cleaning member is roller-shaped and is configured to clean a surface of a roller member to be cleaned in contact therewith. A charging device and a process cartridge also include the cleaning member.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: July 10, 2012
    Assignee: Ricoh Company, Ltd.
    Inventors: Takatsugu Fujishiro, Hiroshi Saitoh
  • Patent number: 8138757
    Abstract: A magnetic sensor is constituted using magnetic sensor chips mounted on stages supported by interconnecting members and a frame having leads in a lead frame. Herein, the stages are inclined upon plastic deformation of the interconnecting members. When the frame is held in a metal mold and the stages are pressed, the interconnecting members are elastically deformed, so that the magnetic sensor chips are bonded onto the stages placed substantially in the same plane and are then wired with the leads. Thereafter, the stages are released from pressure, so that the interconnecting members are restored from the elastically deformed states thereof. When the magnetic sensor chips are combined together to realize three sensing directions, it is possible to accurately measure three-dimensional bearings of magnetism, and the magnetic sensor can be reduced in dimensions and manufactured with a reduced cost thereof.
    Type: Grant
    Filed: August 31, 2005
    Date of Patent: March 20, 2012
    Assignee: Yamaha Corporation
    Inventors: Hiroshi Adachi, Hiroshi Saitoh, Kenichi Shirasaka, Hideki Sato, Masayoshi Omura
  • Publication number: 20110206431
    Abstract: An image forming apparatus includes an image carrier, a cleaning device having a cleaning member that comes into contact with a surface of the image carrier, and a lubricant applying device provided on the downstream side of the cleaning member. The lubricant applying device includes a solid lubricant, a lubricant supply roller, and a trailing type lubricant smoothing blade that is provided on the downstream side of the lubricant supply roller, and comes into belly contact with the surface of the image carrier. After image carrier is stopped, constantly or under a predetermined condition, the surface of the image carrier is moved in a direction opposite to an image forming direction. The opposite movement distance is equal to or more than the shortest distance between a contact point between the lubricant supply roller and the image carrier and a contact point between the lubricant smoothing blade and the image carrier.
    Type: Application
    Filed: February 8, 2011
    Publication date: August 25, 2011
    Applicant: Ricoh Company, Limited
    Inventors: Takaaki Tawada, Hiroshi Saitoh, Kaoru Yoshino, Akira Fujimori, Kensuke Sasaki
  • Publication number: 20110170908
    Abstract: A lubricant applying unit that applies lubricant to a photosensitive element includes solid lubricant blended with fatty acid metal salt, a lubricant supplying brush roller, a lubricant applying blade, and a biasing unit of the solid lubricant. In addition, a lubricant applying unit that applies lubricant to an intermediate transfer belt includes solid lubricant blended with inorganic lubricant, a lubricant supplying brush roller, a lubricant applying blade, and a biasing unit of the solid lubricant blended with the inorganic lubricant.
    Type: Application
    Filed: December 14, 2010
    Publication date: July 14, 2011
    Applicant: Ricoh Company, Limited
    Inventors: Hiroshi Saitoh, Takaaki Tawada, Akira Fujimori
  • Patent number: 7924325
    Abstract: In recording materials of a video program or the like, the video materials are efficiently and optimally acquired so that processing steps in and after an editing step subsequent to a recording step can be reduced. A recording support information (metadata) on a schedule of and a performer for an imaging operation, and the like, which are determined in advance is recorded in a first recording medium 16 by a program constitution input device 100. The first recording medium 16 is inserted in to an imaging device 200, materials to be recorded are classified and confirmed based on the metadata, and the materials which can constitute a desirable program as potentially as possible are acquired in the recording operation.
    Type: Grant
    Filed: April 14, 2005
    Date of Patent: April 12, 2011
    Assignee: Panasonic Corporation
    Inventors: Nobukatsu Okuda, Hideki Otaka, Katsuyuki Sakaniwa, Hiroshi Saitoh, Toshihiro Tanaka, Hisataka Ueda, Norikatsu Yoshida
  • Patent number: 7830011
    Abstract: A semiconductor device, encapsulated in a wafer level chip size package (WLCSP), includes a plurality of pad electrodes formed on the surface of a semiconductor chip, wherein a first insulating layer is formed on the surface of the semiconductor chip except the pad electrodes; a plurality of connection electrodes and at least one heat-dissipation electrode are formed on the surface of the first insulating layer; the pad electrodes and the connection electrodes are mutually connected via a first wiring portion; the heat-dissipation electrode is connected with a second wiring portion; and a second insulating layer is formed to enclose the electrodes and wiring portions, wherein the second wiring portion is arranged in proximity to a heating portion of the semiconductor chip and is formed on the surface of the first insulating layer except the prescribed region corresponding to the first wiring portion.
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: November 9, 2010
    Assignee: Yamaha Corporation
    Inventors: Kentaro Nomoto, Yuki Igawa, Hiroshi Saitoh, Takashi Sato, Toshio Ohashi, Yoshihiro Ohkura
  • Patent number: 7829982
    Abstract: A lead frame includes a frame body defining an internal region, a plurality of leads extending from the frame body, and first and second stages that are disposed in the internal region. The first and second stages are sloped and are parallel to a first line along which a primary stream of a molten resin runs, so that slope angles of the stages are not substantially changed by the injection of the molten resin into the cavity.
    Type: Grant
    Filed: February 16, 2006
    Date of Patent: November 9, 2010
    Assignee: Yamaha Corporation
    Inventors: Kenichi Shirasaka, Hiroshi Saitoh
  • Publication number: 20100215388
    Abstract: A charging device controller controls a charging device including a charging roller to charge a surface of an image carrying member carrying a toner image, a cleaning roller to come into contact with the charging roller to remove therefrom foreign substances including toner, and a contact-separation device to make the cleaning roller come into contact with and separate from the charging roller. The charging device controller includes a contact-separation device controller to cause the contact-separation device to make the cleaning roller come into contact with and separate from the charging roller during an image forming operation, which includes a latent image writing operation of writing a latent image on the image carrying member and a development operation of forming a toner image by supplying toner to the latent image, at an operation other than the latent image writing operation performed on the image carrying member.
    Type: Application
    Filed: February 4, 2010
    Publication date: August 26, 2010
    Inventor: Hiroshi SAITOH
  • Patent number: 7769310
    Abstract: An image forming apparatus in which a visible image is transferred to a transfer material includes a pre-transfer exposing unit that makes only a portion of a latent image carrier that corresponds to a leading edge of the transfer material expose, and a transfer-bias applying unit that applies a bias for transferring the visible image. The transfer-bias applying unit starts applying the bias to the transfer material, at least step-by-step, when a predetermined time is passed from a point of time at which the leading edge of the transfer material comes into a contact with the latent image carrier by controlling the pre-transfer exposing unit and a bias applying timing of the transfer-bias applying unit.
    Type: Grant
    Filed: January 31, 2007
    Date of Patent: August 3, 2010
    Assignee: Ricoh Company, Limited
    Inventors: Hirokazu Ishii, Satoshi Takano, Hiroshi Saitoh, Ryoh Tanoue, Itaru Matsuda, Yuji Suzuki, Eiji Shimojo, Noboru Onodera, Hidenori Nihei
  • Patent number: 7754130
    Abstract: A method for manufacturing a physical quantity sensor includes the steps of: preparing a lead frame comprising a rectangular frame portion, a plurality of leads protruding out from this rectangular frame portion in the inward direction, and a stage portion that is connected to the rectangular frame portion by connecting leads; fixing a physical quantity sensor chip to the stage portion; inclining the stage portion and the physical quantity sensor chip with respect to the rectangular frame portion; and integrating the inclined physical quantity sensor chip and the leads within a metallic mold using a resin.
    Type: Grant
    Filed: April 5, 2007
    Date of Patent: July 13, 2010
    Assignee: Yamaha Corporation
    Inventors: Kenichi Shirasaka, Hiroshi Saitoh
  • Patent number: 7727793
    Abstract: A physical quantity sensor includes a pair of physical quantity sensor chips that are inclined with respect to the bottom of an exterior mold package whose side surfaces are each inclined in a thickness direction by an angle ranging from 0° to 5° and are formed in proximity to the outer ends of the physical quantity sensor chips. It is possible to realize the inclination of stages without using molds, wherein absorption devices are used to absorb prescribed portions related to stages, which rotate about axial lines and are thus inclined with respect to a prescribed base. In manufacturing, a thin metal plate having a plurality of lead frames is placed on a base delimited by a clamp; then, intersecting points of intermediate portions formed between the lead frames are subjected to pressing so as to realize the inclination of stages.
    Type: Grant
    Filed: October 5, 2006
    Date of Patent: June 1, 2010
    Assignee: Yamaha Corporation
    Inventors: Kenichi Shirasaka, Hiroshi Saitoh
  • Patent number: 7728445
    Abstract: A semiconductor device production method which includes steps of: preparing a wafer on which multiple integrated circuits are formed on a principal face; forming a rewiring which is electrically connected to the integrated circuits via a pad electrode; and dicing the wafer after forming an electrode terminal on the rewiring, including steps of: forming a first resin layer by sealing at least the rewiring and the electrode terminal formed on the principal face of the wafer with a first resin; processing a first dicing from a back face of the wafer to the principal face of the wafer or halfway to the first resin layer when the first resin layer is formed; forming a second resin layer by sealing a cut line outlined upon the first dicing and the back face of the wafer continuously with a first resin; and processing a second dicing while leaving the second resin layer which covers a side face outlined upon the first dicing.
    Type: Grant
    Filed: March 15, 2006
    Date of Patent: June 1, 2010
    Assignee: Yamaha Corporation
    Inventors: Taketoshi Nakamura, Hiroshi Saitoh
  • Publication number: 20100072564
    Abstract: A semiconductor device of the invention includes: a substrate having a hollowed hollow section on a top surface; a semiconductor chip mounted in the hollow section of the substrate; and a lid having a substantially plate-shaped top plate section that opposes the substrate and covers the hollow section, and having at least one pair of side wall sections that project from a circumference of the top plate section towards the substrate and that engage with a side surface of the substrate. The substrate and the lid can be accurately positioned.
    Type: Application
    Filed: November 30, 2009
    Publication date: March 25, 2010
    Applicant: Yamaha Corporation
    Inventors: Hiroshi SAITOH, Toshihisa SUZUKI, Shingo SAKAKIBARA
  • Patent number: 7649008
    Abstract: Various crystal forms of 4-(1-((4-methylbenzothiophen-3-yl)methyl)benzimidazol-2-ylthio)butanoic acid from a solvent, and a process for production thereof are provided.
    Type: Grant
    Filed: May 14, 2004
    Date of Patent: January 19, 2010
    Assignee: Teijin Pharma Limited
    Inventors: Mitsuru Teramoto, Naoki Tsuchiya, Hiroshi Saitoh
  • Patent number: 7646092
    Abstract: A semiconductor device of the invention includes: a substrate having a hollowed hollow section on a top surface; a semiconductor chip mounted in the hollow section of the substrate; and a lid having a substantially plate-shaped top plate section that opposes the substrate and covers the hollow section, and having at least one pair of side wall sections that project from a circumference of the top plate section towards the substrate and that engage with a side surface of the substrate. The substrate and the lid can be accurately positioned.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: January 12, 2010
    Assignee: Yamaha Corporation
    Inventors: Hiroshi Saitoh, Toshihisa Suzuki, Shingo Sakakibara
  • Patent number: 7639922
    Abstract: An image pick-up apparatus includes an image pick-up device of recording a video to generate a video signal, a photographer indication device of indicating a start of a recording and/or a stop of the recording, an AutoREC signal generation device of generating an AutoREC signal in conjunction with the start of the recording and/or the stop of the recording based on the indication, and an AutoREC signal multiplex device of multiplexing a generated AutoREC signal to a generated video signal.
    Type: Grant
    Filed: April 14, 2003
    Date of Patent: December 29, 2009
    Assignee: Panasonic Corporaation
    Inventors: Hiroshi Saitoh, Hideaki Mita
  • Publication number: 20090297206
    Abstract: A cleaning member including a core bar, an elastic coating layer, and high-friction coefficient parts provided on both ends of the cleaning member, wherein the cleaning member is roller-shaped and configured to clean a surface of a roller member to be cleaned in contact therewith.
    Type: Application
    Filed: May 20, 2009
    Publication date: December 3, 2009
    Inventors: Takatsugu FUJISHIRO, Hiroshi Saitoh
  • Publication number: 20090243060
    Abstract: A lead frame including a stage and a plurality of terminals is embedded in a mold resin including a base portion for mounting a semiconductor chip (e.g. a microphone chip), a peripheral wall disposed in the periphery of the base portion, and an extension portion extended outside of the peripheral wall, thus forming a package base. A plurality of holes is formed in the peripheral wall so as to expose the internal connection surface of the stage and the internal connection surfaces of the terminals. An extension portion of the stage is exposed on the extension portion of the mold resin in which the surfaces of the terminals are embedded. An extension portion (e.g. a brim) of a cover composed of a conductive material is attached to the extension portion of the mold resin of the package base, thus completely producing a semiconductor device.
    Type: Application
    Filed: March 26, 2009
    Publication date: October 1, 2009
    Applicant: Yamaha Corporation
    Inventor: Hiroshi Saitoh
  • Patent number: 7595548
    Abstract: A physical quantity sensor includes a pair of physical quantity sensor chips that are inclined with respect to the bottom of an exterior mold package whose side surfaces are each inclined in a thickness direction by an angle ranging from 0° to 5° and are formed in proximity to the outer ends of the physical quantity sensor chips. It is possible to realize the inclination of stages without using molds, wherein absorption devices are used to absorb prescribed portions related to stages, which rotate about axial lines and are thus inclined with respect to a prescribed base. In manufacturing, a thin metal plate having a plurality of lead frames is placed on a base delimited by a clamp; then, intersecting points of intermediate portions formed between the lead frames are subjected to pressing so as to realize the inclination of stages.
    Type: Grant
    Filed: October 6, 2005
    Date of Patent: September 29, 2009
    Assignee: Yamaha Corporation
    Inventors: Kenichi Shirasaka, Hiroshi Saitoh
  • Publication number: 20090230487
    Abstract: A semiconductor device includes: a substrate; a semiconductor chip that is fixed to a first surface of the substrate; a chip covering lid body that is provided on the first surface of the substrate so as to cover the semiconductor chip and that forms a hollow first space portion that surrounds the semiconductor chip, and in which there is provided a substantially cylindrical aperture portion that extends to the outer side of the first space portion and has an aperture end at a distal end thereof and that is connected to the first space portion; and a first resin mold portion that forms the first space portion via the chip covering lid body and covers the substrate such that the aperture end is exposed, and that fixes the substrate integrally with the chip covering lid body.
    Type: Application
    Filed: March 14, 2006
    Publication date: September 17, 2009
    Applicant: Yamaha Corporation
    Inventors: Hiroshi Saitoh, Toshihisa Suzuki, Masayoshi Omura