Patents by Inventor Shinji Kubota

Shinji Kubota 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: 6465941
    Abstract: A cold cathode field emission device comprising; (A) a cathode electrode formed on a support, (B) an insulating layer formed on the support and the cathode electrode, (C) a gate electrode formed on the insulating layer, (D) an opening portion which penetrates through the gate electrode and the insulating layer, and (E) an electron emitting portion which is positioned at a bottom portion of the opening portion and has a tip portion having a conical form and being composed of a crystalline conductive material, the tip portion of the electron emitting portion having a crystal boundary nearly perpendicular to the cathode electrode.
    Type: Grant
    Filed: December 3, 1999
    Date of Patent: October 15, 2002
    Assignee: Sony Corporation
    Inventors: Shinji Kubota, Kazuo Kikuchi, Hiroshi Sata
  • Publication number: 20020050776
    Abstract: A cold cathode field emission device comprising; (A) a cathode electrode formed on a support, (B) an insulating layer formed on the support and the cathode electrode, (C) a gate electrode formed on the insulating layer, (D) an opening portion which penetrates through the gate electrode and the insulating layer, and (E) an electron emitting portion which is positioned at a bottom portion of the opening portion and has a tip portion having a conical form and being composed of a crystalline conductive material, the tip portion of the electron emitting portion having a crystal boundary nearly perpendicular to the cathode electrode.
    Type: Application
    Filed: November 5, 2001
    Publication date: May 2, 2002
    Inventors: Shinji Kubota, Kazuo Kikuchi, Hiroshi Sata
  • Patent number: 6379572
    Abstract: A method is provided for manufacturing a flat panel display in which a baseplate has a conductive row electrode deposited on it followed by an insulator. A conductive gate electrode is deposited over the insulator and a soft mask material is deposited over the conductive gate electrode. Microspheres are deposited on the soft mask material and an isotropic etch uses the microspheres as a mask to etch the soft mask material to form soft mask portions under the microspheres. The microspheres are removed and a hard mask material is deposited over the soft mask portions. The hard mask material is processed and chemical mechanical polished down to the soft mask portions which are removed by etching to leave a hard mask which is used by anisotropic etch process to form gate holes in the gate electrode. The gate holes are used to form emitter cavities into which emitters are deposited.
    Type: Grant
    Filed: June 2, 2000
    Date of Patent: April 30, 2002
    Assignees: Sony Corporation, Sony Electronics Inc.
    Inventors: Kazuo Kikuchi, Shinji Kubota
  • Patent number: 6297587
    Abstract: A process for the production of a cold cathode field emission device comprising the steps of; (A) forming a patterned electrode layer on a dielectric supporting substrate, (B) forming an insulating interlayer on the dielectric supporting substrate and the electrode layer, (C) forming a gate electrode constituted of a first conductive layer on the insulating interlayer, (D) forming an opening portion which penetrates through at least the insulating interlayer and has a bottom portion where the electrode layer is exposed, (E) forming a side-wall of an insulating material on the side wall of the opening portion, to decrease the opening portion in diameter, (F) forming a second conductive layer on the entire surface including the inside of the opening portion by a physical or chemical vapor deposition method, (G) etching back the second conductive layer to form an emitter electrode shaped in the form of a column and constituted of the second conductive layer in the opening portion, and (H) removing at least an up
    Type: Grant
    Filed: July 20, 1999
    Date of Patent: October 2, 2001
    Assignee: Sony Corporation
    Inventors: Kazuo Kikuchi, Shinji Kubota
  • Patent number: 6185610
    Abstract: In a system constituted by using the Internet techniques, there is provided a network system which can spontaneously transmit data from a server machine to a desired user terminal. The network system is a server-client type network system including a server machine 10 for storing the data of a plurality of pages which are described in a language along the specification of the HTML to be hyperlinked, and a plurality of user terminals 30 for displaying a page of the server machine on a display by using a Web browser. The server machine 10 includes a data transmission unit 80 for spontaneously transmitting the data described in the language along the specification of the HTML to an arbitrary user terminal. Each of the user terminals 30 monitors reception of the spontaneously transmitted data by using the Web browser and displays the received spontaneously transmitted data on the display.
    Type: Grant
    Filed: May 4, 1998
    Date of Patent: February 6, 2001
    Assignee: Seiko Epson Corporation
    Inventors: Yasuhito Nagatomo, Shinji Kubota, Tadashi Kinebuchi, Hiroyuki Baba, Masanori Konishi
  • Patent number: 6157608
    Abstract: In an optical disc, a sector is sequentially formed with a first gap field, a first guard data recording field, a data recording field composed of synchronous signal and user data, a second guard data recording field, and a second gap field, wherein the length of the first and second gap fields, and the length of the first and second guard data recording fields is changed randomly in every recording, and the changing amount of the first and second guard data recording fields is set smaller than the changing amount of the first and second guard data recording fields, thereby suppressing optical disc medium deterioration in every sector and every mark resulting from repeated recording.
    Type: Grant
    Filed: September 15, 1999
    Date of Patent: December 5, 2000
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Takashi Ishida, Shinji Kubota, Mamoru Shoji, Shinji Ishida
  • Patent number: 6130867
    Abstract: In an optical disc, a sector is sequentially formed with a first gap field, a first guard data recording field, a data recording field composed of synchronous signal and user data, a second guard data recording field, and a second gap field, wherein the length of the first and second gap fields, and the length of the first and second guard data recording fields is changed randomly in every recording, and the changing amount of the first and second guard data recording fields is set smaller than the changing amount of the first and second guard data recording fields, thereby suppressing optical disc medium deterioration in every sector and every mark resulting from repeated recording.
    Type: Grant
    Filed: September 15, 1999
    Date of Patent: October 10, 2000
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Takashi Ishida, Shinji Kubota, Mamoru Shoji, Shinji Ishida
  • Patent number: 6128269
    Abstract: In an optical disc, a sector is sequentially formed with a first gap field, a first guard data recording field, a data recording field composed of synchronous signal and user data, a second guard data recording field, and a second gap field, wherein the length of the first and second gap fields, and the length of the first and second guard data recording fields is changed randomly in every recording, and the changing amount of the first and second guard data recording fields is set smaller than the changing amount of the first and second guard data recording fields, thereby suppressing optical disc medium deterioration in every sector and every mark resulting from repeated recording.
    Type: Grant
    Filed: September 15, 1999
    Date of Patent: October 3, 2000
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Takashi Ishida, Shinji Kubota, Mamoru Shoji, Shinji Ishida
  • Patent number: 6097694
    Abstract: An optical disc having a plurality of sectors, each sector sequentially comprising a field for recording guard data, a data recording field containing a synchronous signal and following user data, the guard data in the guard data recording field corresponding to a recording pattern of the synchronous signal, and the phase of the recording pattern being continuous at the boundary of the guard data recording field and the data recording field; and a recording method using such discs; and a device for formatting and recording on such discs.
    Type: Grant
    Filed: September 16, 1999
    Date of Patent: August 1, 2000
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Takashi Ishida, Shinji Kubota, Mamoru Shoji, Shinji Ishida
  • Patent number: 6034932
    Abstract: In an optical disc, a sector is sequentially formed with a first gap field, a first guard data recording field, a data recording field composed of synchronous signal and user data, a second guard data recording field, and a second gap field, wherein the length of the first and second gap fields, and the length of the first and second guard data recording fields is changed randomly in every recording, and the changing amount of the first and second guard data recording fields is set smaller than the changing amount of the first and second guard data recording fields, thereby suppressing optical disc medium deterioration in every sector and every mark resulting from repeated recording.
    Type: Grant
    Filed: October 7, 1997
    Date of Patent: March 7, 2000
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Takashi Ishida, Shinji Kubota, Mamoru Shoji, Shinji Ishida
  • Patent number: 6031803
    Abstract: An optical disk device comprises a power ratio setting circuit for setting ratio of recording power to erasing power in a predetermined ratio, a recording start point detection circuit for detecting a recording start point by performing at least two cycle recording over the same area in a predetermined test region to detect a recording power and an erasing power of the recording start point, and a power setting circuit for setting a final recording power and erasing power for recording in a user region of the optical disk by multiplying the recording power and the erasing power of the recording start point by predetermined values respectively.
    Type: Grant
    Filed: November 4, 1998
    Date of Patent: February 29, 2000
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Shinji Kubota, Masatsugu Tanji, Wataru Masuda
  • Patent number: 5858162
    Abstract: A plasma processing apparatus including a chamber, a device for exhausting the chamber, an electrode, which is provided within the chamber, for mounting a workpiece to be processed, a device for generating a bias electric field near a wall surface of the chamber, a device for generating a magnetic field substantially parallel to the chamber wall to thereby generate a magnetron discharge by the interaction between the bias electric field and the magnetic field, and a device for providing a high frequency into the chamber.
    Type: Grant
    Filed: June 18, 1997
    Date of Patent: January 12, 1999
    Assignee: Sony Corporation
    Inventor: Shinji Kubota
  • Patent number: 5841747
    Abstract: An optical disk device comprises a power ratio setting circuit for setting ratio of recording power to erasing power in a predetermined ratio, a recording start point detection circuit for detecting a recording start point by performing at least two cycle recording over the same area in a predetermined test region to detect a recording power and an erasing power of the recording start point, and a power setting circuit for setting a final recording power and erasing power for recording in a user region of the optical disk by multiplying the recording power and the erasing power of the recording start point by predetermined values respectively.
    Type: Grant
    Filed: August 21, 1996
    Date of Patent: November 24, 1998
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Shinji Kubota, Masatsugu Tanji, Wataru Masuda
  • Patent number: 5781872
    Abstract: An on-vehicle data processing system is provided which can cause the vehicle information to be displayed on a display device 10. The on-vehicle data processing system has a mode setting unit 32 for setting the running and stop modes and a data processing unit 34 for computing the mode images. The data processing unit 34 computes the running mode images representing the running states of the vehicle in real time while in the running mode and the stop mode images representing the details of the vehicle information while in the stop mode. Thus, the running mode images, more easily viewed by the driver, can be displayed on the display device in the running mode while the stop mode images, preferentially displaying the contents of the vehicle information, can be displayed on the display device in the stop mode.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: July 14, 1998
    Assignees: Seiko Epson Corporation, Unisia Jecs Corp.
    Inventors: Masanori Konishi, Shinji Kubota, Hisatomo Ohki, Kazuyuki Tomita
  • Patent number: 5548696
    Abstract: A novel image processing apparatus allows sophisticated but simple image processing with respect to a plurality of input video data, for example, multi-stage data mixing or multiple semi-transparent process. In the image processing apparatus of the invention, a plurality of video data are processed by a predetermined time-sharing operation according to a priority sequence so as to be superposed one upon another. Transparency processing is also executed based on a transparency information bit included in input video data.
    Type: Grant
    Filed: October 6, 1993
    Date of Patent: August 20, 1996
    Assignee: Seiko Epson Corporation
    Inventors: Shinji Kubota, Hiroaki Nasu
  • Patent number: 5539179
    Abstract: An electrostatic chuck for electrostatically holding a wafer is provided in a vacuum chamber formed in a magnetron plasma etching apparatus. The electrostatic chuck has a base member, a first insulating layer provided on the base member and made of polyimide, a second insulation layer made of AlN, a conductive sheet provided between first and second insulation layers, and an adhesive layer made of a thermosetting resin and adhering the first insulating layer to the second insulating layer. The wafer is placed on the second insulating layer, and power is supplied from a high voltage power supply to the conductive sheet via a feeding sheet, thereby creating static electricity and hence a coulombic force for holding the wafer on the second insulating layer.
    Type: Grant
    Filed: November 15, 1991
    Date of Patent: July 23, 1996
    Assignees: Tokyo Electron Limited, Kabushiki Kaisha Toshiba
    Inventors: Toshihisa Nozawa, Junichi Arami, Shinji Kubota, Isahiro Hasegawa, Katsuya Okumura
  • Patent number: 5216657
    Abstract: A method and an apparatus for recording information signals on an optical information recording medium which is reversibly changeable between optically distinguishable states corresponding to an irradiating condition of a bundle of high density energy such as laser beam. The starting point of recording signals is randomly changed, and the thermal history of the recording material by the beam irradiation is averaged and the number of repetition recording times is improved. A delay circuit is provided, and reference recording gate signals are formed on the basis of format signals obtained from a recording medium, and a random delay time is set just thereafter, and the starting point of recording of recording signals is started.
    Type: Grant
    Filed: September 3, 1992
    Date of Patent: June 1, 1993
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kenichi Nishiuchi, Noboru Yamada, Nobuo Akahira, Kazutoyo Hirosawa, Tomio Yoshida, Shinji Kubota
  • Patent number: 5148309
    Abstract: A reflective type screen comprising a reflective surface layer a polarizing plate layer located in front of said reflective surface layer and a diffusion layer located in front of the polarized plate layer, wherein the reflective surface layer, the polarizing plate layer and the diffusion layer are laminated together using an adhesive to form an integral structure is disclosed. In addition, a reflective type screen comprising a reflective surface layer subjected to mirror-surface processing and laid on a flexible substrate, a polarizer and a diffusion layer arranged for covering the polarizer therewith wherein the reflective surface layer, the polarizer and the diffusion layer are laminated together using an adhesive to form an integral structure is disclosed.
    Type: Grant
    Filed: December 11, 1991
    Date of Patent: September 15, 1992
    Assignee: Toppan Printing Co., Ltd.
    Inventors: Chihiko Yamada, Teruo Suzuki, Tsutomu Yoshida, Shinji Kubota
  • Patent number: 4845720
    Abstract: Herein disclosed is a semiconductor laser control circuit in which: (i) the peak and bottom values of a pulse light can be controlled independently and precisely and set at an optical power value necessary for a high speed; and (ii) the abnormality of the output light of the semiconductor laser can be detected to prevent the stored content of an optical disc, for example, from being broken.
    Type: Grant
    Filed: October 18, 1988
    Date of Patent: July 4, 1989
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kenji Koishi, Shinji Kubota, Kenzo Ishibashi
  • Patent number: 4841512
    Abstract: An optical disk apparatus is disclosed in which data is recorded, reproduced and erased on an erasable optical disk. After first data is recorded in a predetermined track or sector, it is erased. Second data is then recorded in the same track or sector, and it is decided that the erase function is normal when the second data is reproduced correctly.
    Type: Grant
    Filed: December 17, 1986
    Date of Patent: June 20, 1989
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Shinji Kubota, Kazutoyo Hirosawa, Tomio Yoshida