Patents by Inventor Tsutomu Imai

Tsutomu Imai 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: 20080091900
    Abstract: The disclosed invention effectively prevents fraudulent access to data whose usage is restricted to a time limit, such access attempted by manipulating the clock internal to a playback device and a terminal device. A nonvolatile memory device of the invention comprises a control circuit and a nonvolatile memory circuit which includes a storage region for restriction information to restrict access to contents information provided by web-based rental service. The restriction information includes access time limit information and access time stamp information. The control circuit performs an access decision action which comprises deciding whether access to the contents information is enabled or disabled, based on real time information which is supplied externally and the restriction information, and updating the access time stamp information to the realtime information.
    Type: Application
    Filed: November 30, 2007
    Publication date: April 17, 2008
    Inventors: Tsutomu IMAI, Akira Kanehira, Kunihiro Katayama
  • Patent number: 7342234
    Abstract: A radiological imaging apparatus which can keep detectors at a low temperature, improve a time resolution and an energy resolution and perform an accurate diagnosis is provided. In the radiological imaging apparatus, an imaging apparatus imaging a testing subject supported by a bed couples a detector board having placed thereon radiation detectors detecting radiations emitted from the testing subject and a signal processing board having placed thereon a signal processing circuit processing detection signals of the radiation detectors via an intermediate board by connectors, and separates a detector space including the radiation detectors and a signal processing circuit space including the signal processing circuit.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: March 11, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Norihito Yanagita, Tsutomu Imai, Takashi Matsumoto, Kensuke Amemiya, Yuuichirou Ueno, Tomoyuki Seino
  • Patent number: 7340751
    Abstract: A vehicle mount disc player having a small thickness by removing a wasteful space around a reproduction unit chassis when a disc is loaded or unloaded. The vehicle mount disc player has the reproduction unit chassis supported in a floating state by a main chassis via damper mechanisms. The reproduction unit chassis is locked so as to be shifted to a disc motor side along an axial direction of a disc motor and a turntable when the disc is loaded or unloaded.
    Type: Grant
    Filed: July 14, 2004
    Date of Patent: March 4, 2008
    Assignee: Kabushiki Kaisha Kenwood
    Inventors: Takafumi Suwa, Shoji Tomioka, Tsutomu Imai, Yosuke Haga, Takeharu Sasada
  • Patent number: 7340153
    Abstract: When recording operation is stopped due to, for example, unexpected interruption of electric power supply in the course of the recording operation on a real time basis, a technique of repairing a moving picture and sound data recorded on a recording medium until the recording is stopped, to thereby restore management information data which enables random access and special reproduction is provided. A video/audio/management information multiplexing means is so implemented as to generate data required for generating management information data for allowing random access to the recording medium and effectuating special reproduction of the recording medium, for thereby multiplexing the data required for generating the management information data, encoded video data outputted from a video encoding means and encoded audio data outputted from an audio encoding means.
    Type: Grant
    Filed: July 30, 2001
    Date of Patent: March 4, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Yukio Isobe, Susumu Yoshida, Tsutomu Imai, Toshihiro Kato
  • Publication number: 20070254400
    Abstract: The flatness of the surface of the light-receiving portion must be increased when the upper structural layer of a light detector is etched. The present invention provides a method for manufacturing an integrated circuit in which an aperture is formed in a stack in which an underlayer, a light-receiving area pad, and an upper structural layer are layered on a substrate, the method comprising a light-receiving area pad etching step for etching the structural layer and the light-receiving area pad under etching conditions in which a high selectivity ratio is maintained between the upper structural layer and the light-receiving area pad; and an underlayer etching step for switching to etching conditions in which the light-receiving area pad has a high selectivity ratio in relation to the underlayer following the light-receiving area pad etching step, and etching the light-receiving area pad and the underlayer.
    Type: Application
    Filed: April 24, 2007
    Publication date: November 1, 2007
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Tetsuya Yamada, Tsutomu Imai
  • Publication number: 20070086749
    Abstract: When recording operation is stopped due to, for example, unexpected interruption of electric power supply in the course of the recording operation on a real time basis, a technique of repairing a moving picture and sound data recorded on a recording medium until the recording is stopped, to thereby restore management information data which enables random access and special reproduction is provided. A video/audio/management information multiplexing means is so implemented as to generate data required for generating management information data for allowing random access to the recording medium and effectuating special reproduction of the recording medium, for thereby multiplexing the data required for generating the management information data, encoded video data outputted from a video encoding means and encoded audio data outputted from an audio encoding means.
    Type: Application
    Filed: December 11, 2006
    Publication date: April 19, 2007
    Applicant: Hitachi, Ltd.
    Inventors: Yukio Isobe, Susumu Yoshida, Tsutomu Imai, Toshihiro Kato
  • Patent number: 7138670
    Abstract: A compact semiconductor device having a contact hole that improves stability of electric connection between a wire and an electrode. The semiconductor device includes an insulation layer formed on a semiconductor substrate, first electrodes formed on the insulation layer and spaced from one another by an interval, an insulation film covering the first electrodes, and spaced second electrodes formed on the insulation film. Each second electrode includes an intermediate portion filling the space between two adjacent first electrodes, two edge portions respectively laid above the two adjacent first electrodes in an overlapping manner, and an upper surface connected to a wire by a contact. Thickness, t1, of the insulation film, thickness, t2, of each edge portion of the second electrode, and interval, S, between the first electrodes are adjusted to satisfy the expression of S<(2t1+2t2).
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: November 21, 2006
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Tetsuya Miwa, Tsutomu Imai, Seiji Kai, Takayuki Kaida
  • Publication number: 20060241386
    Abstract: A radiological imaging apparatus which can keep detectors at a low temperature, improve a time resolution and an energy resolution and perform an accurate diagnosis is provided. In the radiological imaging apparatus, an imaging apparatus imaging a testing subject supported by a bed couples a detector board having placed thereon radiation detectors detecting radiations emitted from the testing subject and a signal processing board having placed thereon a signal processing circuit processing detection signals of the radiation detectors via an intermediate board by connectors, and separates a detector space including the radiation detectors and a signal processing circuit space including the signal processing circuit.
    Type: Application
    Filed: February 17, 2006
    Publication date: October 26, 2006
    Inventors: Norihito Yanagita, Tsutomu Imai, Takashi Matsumoto, Kensuke Amemiya, Yuuichirou Ueno, Tomoyuki Seino
  • Publication number: 20060151773
    Abstract: A solid-state imager is disclosed wherein isolation regions (4) are covered with power supply lines (8), a light-transmitting lens film (24) whose surface forms continuous convex portions above the isolation regions (4) convex towards channel regions (5) is provided, and a light-transmitting material having a refractive index lower than that of the lens film (24) is provided over the lens film (24).
    Type: Application
    Filed: April 16, 2004
    Publication date: July 13, 2006
    Inventors: Seiji Kai, Ryouji Matsui, Tetsuya Yamada, Tsutomu Imai, Kazuyuki Takegawa
  • Patent number: 6995915
    Abstract: The present invention intends to provide a manufacturing method of a heat resistant micro-lens. The manufacturing method includes forming on a substrate an inorganic film having the optical transparency; forming, at positions that are on the inorganic film and correspond to lens formation positions, a resist films; etching a portion where the resist films are not formed of the inorganic film; removing the resist films that remain; and irradiating inert gas ions to the inorganic film from which the resist films are removed and that is patterned according to the etching.
    Type: Grant
    Filed: November 4, 2004
    Date of Patent: February 7, 2006
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Kazuyuki Takegawa, Ryoji Matsui, Tetsuya Yamada, Tsutomu Imai, Seiji Kai, Yuko Tanaka
  • Publication number: 20050161709
    Abstract: A compact semiconductor device having a contact hole that improves stability of electric connection between a wire and an electrode. The semiconductor device includes an insulation layer formed on a semiconductor substrate, first electrodes formed on the insulation layer and spaced from one another by an interval, an insulation film covering the first electrodes, and spaced second electrodes formed on the insulation film. Each second electrode includes an intermediate portion filling the space between two adjacent first electrodes, two edge portions respectively laid above the two adjacent first electrodes in an overlapping manner, and an upper surface connected to a wire by a contact. Thickness, t1, of the insulation film, thickness, t2, of each edge portion of the second electrode, and interval, S, between the first electrodes are adjusted to satisfy the expression of S<(2t1+2t2).
    Type: Application
    Filed: January 21, 2005
    Publication date: July 28, 2005
    Inventors: Tetsuya Miwa, Tsutomu Imai, Seiji Kai, Takayuki Kaida
  • Publication number: 20050099695
    Abstract: The present invention intends to provide a manufacturing method of a heat resistant micro-lens. The manufacturing method includes forming on a substrate an inorganic film having the optical transparency; forming, at positions that are on the inorganic film and correspond to lens formation positions, a resist films; etching a portion where the resist films are not formed of the inorganic film; removing the resist films that remain; and irradiating inert gas ions to the inorganic film from which the resist films are removed and that is patterned according to the etching.
    Type: Application
    Filed: November 4, 2004
    Publication date: May 12, 2005
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Kazuyuki Takegawa, Ryoji Matsui, Tetsuya Yamada, Tsutomu Imai, Seiji Kai, Yuko Tanaka
  • Publication number: 20050102688
    Abstract: A vehicle mount disc player having a small thickness by removing a wasteful space around a reproduction unit chassis when a disc is loaded or unloaded. The vehicle mount disc player has the reproduction unit chassis supported in a floating state by a main chassis via damper mechanisms. The reproduction unit chassis is locked so as to be shifted to a disc motor side along an axial direction of a disc motor and a turntable when the disc is loaded or unloaded.
    Type: Application
    Filed: July 14, 2004
    Publication date: May 12, 2005
    Applicant: Kabushiki Kaisha Kenwood
    Inventors: Takafumi Suwa, Shoji Tomioka, Tsutomu Imai, Yosuke Haga, Takeharu Sasada
  • Publication number: 20040215909
    Abstract: The disclosed invention effectively prevents fraudulent access to data whose usage is restricted to a time limit, such access attempted by manipulating the clock internal to a playback device and a terminal device. A nonvolatile memory device of the invention comprises a control circuit and a nonvolatile memory circuit which includes a storage region for restriction information to restrict access to contents information provided by web-based rental service. The restriction information includes access time limit information and access time stamp information. The control circuit performs an access decision action which comprises deciding whether access to the contents information is enabled or disabled, based on real time information which is supplied externally and the restriction information, and updating the access time stamp information to the real time information.
    Type: Application
    Filed: April 16, 2004
    Publication date: October 28, 2004
    Applicant: Renesas Technology Corp.
    Inventors: Tsutomu Imai, Akira Kanehira, Kunihiro Katayama
  • Patent number: 6772425
    Abstract: A vehicle mount disc player having a small thickness by removing a wasteful space around a reproduction unit chassis when a disc is loaded or unloaded. The vehicle mount disc player has the reproduction unit chassis supported in a floating state by a main chassis via damper mechanisms. The reproduction unit chassis is locked so as to be shifted to a disc motor side along an axial direction of a disc motor and a turntable when the disc is loaded or unloaded.
    Type: Grant
    Filed: February 18, 2000
    Date of Patent: August 3, 2004
    Assignee: Kabushiki Kaisha Kenwood
    Inventors: Takafumi Suwa, Shoji Tomioka, Tsutomu Imai, Yosuke Haga, Takeharu Sasada
  • Patent number: 6704777
    Abstract: A recording and reproducing apparatus has a communicating unit, a reading unit, a storing unit, a control unit, and an output unit. The communicating unit transmits and receives data to/from an information center in which a plurality of additional information have been stored. The reading unit reads out recorded data from a recording medium on which a plurality of data and index data of a plurality of data have been recorded. The data read out from the recording medium by the reading unit is stored in the storing unit. The control unit reads out the additional information corresponding to the recording medium from which the data is read out by the reading unit from the information center by the communicating unit and writes the read-out additional information into the storing unit as additional data of the recording medium which is read out by the reading unit. The output unit outputs the data stored in the storing unit and the additional data.
    Type: Grant
    Filed: November 6, 2001
    Date of Patent: March 9, 2004
    Assignee: Sony Corporation
    Inventors: Kissei Matsumoto, Han Min-Jae, Takuya Kaeriyama, Tsutomu Imai, Seiichi Jinbo
  • Patent number: 6658376
    Abstract: An apparatus and method for determining certain correction factors in analyzing the vibration frequency characteristics of an electroded crystal plate. The developed correction factors are introduced to correct the inaccuracies of third-order thickness-shear cut-off frequencies. The analysis is preferably carried out during the design of a piezoelectric device incorporating the electroded crystal plate before production of the device.
    Type: Grant
    Filed: November 30, 1999
    Date of Patent: December 2, 2003
    Assignee: Seiko Epson Corporation
    Inventors: Ji Wang, Jiun-Der Yu, Yook-Kong Yong, Tsutomu Imai
  • Patent number: 6654711
    Abstract: Techniques are provided for determining certain correction factors and using these correction factors in analyzing the vibration frequency characteristics of a piezoelectric material. The correction factors are developed based on the Mindlin plate theory and are introduced to correct the inaccuracies of higher-order thickness-shear cut-off frequencies. The analysis is preferably carried out during the design of a piezoelectric device incorporating the piezoelectric material and before production of the piezoelectric device. The design state may also include determining whether the device and its electrodes exhibit appropriate stiffness characteristics.
    Type: Grant
    Filed: June 15, 1999
    Date of Patent: November 25, 2003
    Assignee: Seiko Epson Corporation
    Inventors: Ji Wang, Jiun-Der Yu, Yook-Kong Yong, Tsutomu Imai
  • Patent number: 6636470
    Abstract: A disc reproduction apparatus capable of stabilizing the position of the circumferential edge of a disc during the disc loading and preventing the disc from abutting on a turntable. In the disc reproduction apparatus of the type that a disc squeezed between a disc guide and a disc roller is loaded while the roller is rotated, a disc contact surface of the disc guide is slanted so that the disc is spaced from a turntable along a disc transport direction when the disc is loaded.
    Type: Grant
    Filed: February 11, 2000
    Date of Patent: October 21, 2003
    Assignee: Kabushiki Kaisha Kenwood
    Inventors: Takeharu Sasada, Tsutomu Imai, Yosuke Haga, Shinji Masuda, Atuomi Ono, Midori Murakami
  • Patent number: 6614747
    Abstract: A floating chassis support mechanism is provided which can thin a disc reproduction apparatus. In the floating chassis support mechanism for a disc reproduction apparatus for supporting a floating chassis with springs and dampers vertically from the opposite side of a loaded disc, the damper is disposed outside of a projection area of the disc, and an area of the floating chassis supported by the dampers is retracted towards the disc side more than a lower surface of the disc.
    Type: Grant
    Filed: June 7, 2002
    Date of Patent: September 2, 2003
    Assignee: Kabushiki Kaisha Kenwood
    Inventors: Tsutomu Imai, Yosuke Haga, Takeharu Sasada, Shinji Masuda, Atuomi Ono, Midori Murakami