Patents by Inventor Tsuyoshi Hasegawa

Tsuyoshi Hasegawa 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: 20060157802
    Abstract: The present invention relates to a transistor for selecting a storage cell and a switch using a solid electrolyte. In a storage cell, a metal is stacked on a drain diffusion layer of a field-effect transistor formed on a semiconductor substrate surface. The solid electrolyte using the metal as a carrier is stacked on the metal. The solid electrolyte contacts with the metal via a gap, and the metal is connected to a common grounding conductor. A source of the field-effect transistor is connected to a column address line, and a gate of the field-effect transistor is connected to a row address line.
    Type: Application
    Filed: September 24, 2002
    Publication date: July 20, 2006
    Inventors: Toshitsugu Sakamoto, Masakazu Aono, Tsuyoshi Hasegawa, Tomonbu Nakayama, Kazuya Terabe, Hisao Kawaura, Tadahiko Sugibayashi
  • Publication number: 20060114815
    Abstract: Disclosed is a pilot multiplexing method in an Orthogonal Frequency Division Multiplexing (OFDM) system. Transmit data is transmitted by an OFDM signal through an OFDM scheme, pilot data is directly spread, and a spread-spectrum signal, which has been obtained by spreading, is transmitted in the same frequency band as that of the OFDM signal at the same time in superposition therewith or time-division multiplexed therewith. The spread-spectrum signal is a CDMA signal that has been obtained by spreading the pilot data by a prescribed spreading code.
    Type: Application
    Filed: January 10, 2006
    Publication date: June 1, 2006
    Inventors: Tsuyoshi Hasegawa, Masahiko Shimizu
  • Patent number: 7026911
    Abstract: A point contact array, including plural point contacts electrically and reversibly controlling conductance between electrodes and being applicable to an arithmetic circuit, a logic circuit, a memory device, a NOT circuit, and an electronic circuit including the same. The circuit includes plural point contacts each including a first electrode made of a compound conductive material having ionic conductivity and electronic conductivity and a second electrode made of a conductive substance. The conductance of each point contact is controlled to realize the circuit. Ag2S, Ag2Se, Cu2S, or Cu2Se is preferably used as the compound conductive material. When a semiconductor or insulator material is interposed between the electrodes, a crystal or an amorphous material of GeSx, GeSex, GeTex, or WOx (0<x<100) is preferably used as the semiconductor or insulator material.
    Type: Grant
    Filed: October 29, 2001
    Date of Patent: April 11, 2006
    Assignees: Japan Science and Technology Corporation, Riken
    Inventors: Masakazu Aono, Tsuyoshi Hasegawa, Kazuya Terabe, Tomonobu Nakayama
  • Patent number: 7008275
    Abstract: An electrical joint forming member is held between adjacent conductive members included in a semiconductor device fabricating apparatus to reduce electrical resistance between those conductive members. The electrical joint forming member includes an elastic member made of a titanium sheet (75 ?m thick, 2 mm wide) and having a surface covered with an aluminum layer (7 ?m thick), the aluminum layer being formed by joining an aluminum sheet to the surface of the titanium sheet by cold-roll bonding.
    Type: Grant
    Filed: September 29, 2004
    Date of Patent: March 7, 2006
    Assignees: Tokyo Electron Limited, Neomax Materials Co., Ltd.
    Inventors: Toshihiro Hayami, Naoyuki Umehara, Tsuyoshi Hasegawa
  • Patent number: 6988059
    Abstract: To make it possible to draw a contour of a stereo model arranged in a virtual space, by a simple processing, a contour drawing model is acquired during initialization (at Step S2). This contour drawing model contains a stereo model and has its individual planes reversed from the corresponding planes of the stereo model. In the setting of the state in a virtual space, the contour drawing model is arranged (at Step S3). If the contour is to be drawn for the stereo model (at Step S4), the contour drawing model is drawn (at Step S5). The contour drawing model is perspectively transformed, and only the face with respect to a viewpoint is drawn by erasing a hidden plane. As a result of this hidden plane erasure, the contour drawing model is partially drawn as a contour outside of the stereo model because it is larger than the stereo model. Finally, the stereo model is drawn as usual (at Step S6).
    Type: Grant
    Filed: September 14, 2000
    Date of Patent: January 17, 2006
    Assignee: Kabushiki Kaisha Square Enix
    Inventors: Tsuyoshi Hasegawa, Hitoshi Imai
  • Publication number: 20060008658
    Abstract: It is an object of the present invention to provide a laminated glass and an interlayer film for laminated glasses, which have the high performance for mitigating the impact given externally and, particularly in the case of using it as glass for vehicles, have the high performance for mitigating the impact when head comes into collision with the glass due to the occurrence of a personal accident. The present invention is directed to a laminated glass, wherein at least an interlayer film for laminated glasses and a glass sheet are laminated and unified, Head Injury Criteria (HIC) values, measured according to regulations of European Enhanced Vehicle-safety Committee; EEVC/WG 17, being 1,000 or lower.
    Type: Application
    Filed: August 19, 2004
    Publication date: January 12, 2006
    Inventors: Juichi Fukatani, Toshio Tada, Tsuyoshi Hasegawa, Masaki Matsudo
  • Patent number: 6982009
    Abstract: The method of the present invention cleans abrasive faces of an upper abrasive plate and a lower abrasive plate of an abrasive machine. The method is executed by a cleaning device including: a nozzle for jetting water; a brush for preventing the jetted water from scattering in the air, the brush enclosing the nozzle; and another brush for closing a gap between the preventing brush and an outer edge of the upper abrasive plate, the method is characterized by the steps of: jetting water from the nozzle toward the abrasive face of the upper abrasive plate; moving the nozzle toward the outer edge of the upper abrasive plate; and closing the gap by the closing brush when the gap is formed between the preventing brush and the outer edge of the upper abrasive plate.
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: January 3, 2006
    Assignee: Fujikoshi Machinery Corp.
    Inventors: Yasuhide Denda, Yoshio Nakamura, Yoshinobu Nishimoto, Makoto Nakajima, Tsuyoshi Hasegawa, Norihiko Moriya
  • Publication number: 20050276315
    Abstract: A autocorrelation peak detector (54) and a interference-reducing timing generator (55) decide interference-reducing timings ?±(?2??1) for eliminating interference components that arrive from an adjacent base station, and a path searcher (53) decides the path timing ? of multipath from a base station with which communication is currently in progress. A despreading timing decision unit (56) decides a plurality of despreading timings ?, ?±(?2??1) from the above-mentioned timings, fingers (571 to 573) despread a receive spread-spectrum signal at respective ones of the despreading timings, and a RAKE combiner (58) weights and combines a plurality of results of despreading to thereby diminish interference components.
    Type: Application
    Filed: November 30, 2004
    Publication date: December 15, 2005
    Inventors: Masahiko Shimizu, Tsuyoshi Hasegawa
  • Publication number: 20050243844
    Abstract: There are provided a point contact array, in which a plurality of point contacts are arranged, each point contact electrically and reversibly controlling conductance between electrodes and being applicable to an arithmetic circuit, a logic circuit, and a memory device, a NOT circuit, and an electronic circuit using the same. A circuit includes a plurality of point contacts each composed of a first electrode made of a compound conductive material having ionic conductivity and electronic conductivity and a second electrode made of a conductive substance. The conductance of each point contact is controlled to realize the circuit. Ag2S, Ag2Se, Cu2S, or Cu2Se is preferably used as the compound conductive material. When a semiconductor or insulator material is interposed between the electrodes, a crystal or an amorphous material of GeSx, GeSex, GeTex, or WOx (0<x<100) is preferably used as the semiconductor or insulator material.
    Type: Application
    Filed: June 24, 2005
    Publication date: November 3, 2005
    Applicants: Japan Science and Technology Corporation, RIKEN
    Inventors: Masakazu Aono, Tsuyoshi Hasegawa, Kazuya Terabe, Tomonobu Nakayama
  • Publication number: 20050242283
    Abstract: A digital probing type atomic force microscope (AFM) for measuring high aspect structures with high precision. A probe 21 is vibrated while moved to the vicinity of an atomic force region on a specimen surface. The position of the probe is measured when a specified atomic force is detected in the atomic force region. The probe is then moved away from the specimen surface. A servo system for maintaining a gap between the probe and specimen surface is stopped. The probe is moved to a measurement point along the specimen surface while kept away from the specimen. The vibration frequency is a frequency slightly offset from the cantilever resonance point. The atomic force is detected based on the vibration amplitude of the cantilever.
    Type: Application
    Filed: February 5, 2003
    Publication date: November 3, 2005
    Inventors: Tsuyoshi Hasegawa, Masakazu Aono, Tomonobu Nakayama, Sumio Hosaka
  • Publication number: 20050173051
    Abstract: An object of the present invention is to provide an adhesive substance capable of being easily peeled off without damaging an adherend by giving stimulation thereto, a tape employing this adhesive substance, and a method for peeling off the adhesive substance. An adhesive substance, which contains a gas-generating agent for generating gas by stimulation, gas generated from said gas-generating agent being discharged to the outside of said adhesive substance so as not to foam said adhesive substance, and gas generated from said gas-generating agent peeling at least part of an adhesive surface of said adhesive substance off an adherend so as to decrease adhesive strength.
    Type: Application
    Filed: June 3, 2002
    Publication date: August 11, 2005
    Inventors: Munehiro Hatai, Masateru Fukuoka, Satoshi Hayashi, Shigeru Danjo, Yasuhiko Oyama, Kazuhiro Shimomura, Tsuyoshi Hasegawa
  • Publication number: 20050127524
    Abstract: The present invention provides a solid electrolyte switching device, which can maintain an on or off state when the power source is removed, the resistance of which in on the state is low, and which is capable of integration and re-programming, and FPGA and a memory device using the same, and a method of manufacturing the same.
    Type: Application
    Filed: April 25, 2003
    Publication date: June 16, 2005
    Inventors: Toshitsugu Sakamoto, Masakazu Aono, Tsuyoshi Hasegawa, Tomonobu Nakayama, Hiroshi Sunamura, Hisao Kawaura, Naohiko Sugibayashi
  • Publication number: 20050123026
    Abstract: Even when the number of paths is increased, interfering noises can be effectively reduced by a rake receiver for use in a spread spectrum communication system. The rake receiver includes a timing detecting unit detecting a reception timing ti (i=1 to N) of each of N paths when direct spread spectrum signals of the N paths are received; an inverse spreading timing setting unit setting, as a timing for inverse spreading, a timing ti,j,k (k=1 to N, k?j) at which an inverse spread value is obtained that has interference and correlation from the jth (j=1 to N, j?i) path included in the inverse spread value of the ith path counted from the reception timing ti (i=1 to N) detected by the timing detecting unit; a plurality of correlators each obtaining an inverse spread signal of the received signal corresponding to each timing set by the inverse spreading timing setting unit; and a signal composing unit composing outputs of the plurality of correlators.
    Type: Application
    Filed: January 13, 2005
    Publication date: June 9, 2005
    Inventors: Tsuyoshi Hasegawa, Masahiko Shimizu
  • Publication number: 20050113258
    Abstract: The present invention relates to superconductive filter technology. According to the arrangement of the superconductive filter (1), a columnar resonating member (23) having a superconductive material formed on the surface thereof is attached at one of its ends thereof to an inner wall (22) of a filter housing (21) so that a space is interposed between the columnar resonating member and each of connectors (27a, 27b) which are connectable to a signal input/output cables (5a, 5b), respectively. According to this arrangement, heat conduction from the outside can be suppressed as far as possible, and the superconductive condition can be created with stability, with the result that a stable filtering characteristic can be created.
    Type: Application
    Filed: December 29, 2004
    Publication date: May 26, 2005
    Inventors: Manabu Kai, Kazunori Yamanaka, Tsuyoshi Hasegawa, Toru Maniwa
  • Patent number: 6891186
    Abstract: This invention provides a method for constructing bridge including fine wires or point contacts producing a quanitized inter-electrode conductance, and provides a method for easily controlling the conductance of this bridge. Further, it aims to provide an electronic element using conductance control due to the bridge, fine wire or point contact formed between the electrodes. These objects are accomplied with an electronic element comprising a first electrode comprising a mixed electroconducting material having ion conductance and electron conductance, and a second electrode comprising an electroconducting substance, wherein the inter-electric conductance can be controlled. In another aspect, this invention is an electronic element formed by a bridge between electrodes, by applying a voltage between the electrodes so that the second electrode is negative with respect to the first electrode and movable ions migrate from the first electrode to the second electrode.
    Type: Grant
    Filed: August 30, 2001
    Date of Patent: May 10, 2005
    Assignee: Japan Science and Technology Corporation
    Inventors: Masakazu Aono, Kazuya Terabe, Tsuyoshi Hasegawa, Tomonobu Nakayama
  • Publication number: 20050070174
    Abstract: An electrical joint forming member is held between adjacent conductive members included in a semiconductor device fabricating apparatus to reduce electrical resistance between those conductive members. The electrical joint forming member includes an elastic member made of a titanium sheet (75 ?m thick, 2 mm wide) and having a surface covered with an aluminum layer (7 ?m thick), the aluminum layer being formed by joining an aluminum sheet to the surface of the titanium sheet by cold-roll bonding.
    Type: Application
    Filed: September 29, 2004
    Publication date: March 31, 2005
    Inventors: Toshihiro Hayami, Naoyuki Umehara, Tsuyoshi Hasegawa
  • Patent number: 6873864
    Abstract: The present invention relates to superconductive filter technology. According to the arrangement of the superconductive filter (1), a columnar resonating member (23) having a superconductive material formed on the surface thereof is attached at one of its ends thereof to an inner wall (22) of a filter housing (21) so that a space is interposed between the columnar resonating member and each of connectors (27a, 27b) which are connectable to a signal input/output cables (5a, 5b), respectively. According to this arrangement, heat conduction from the outside can be suppressed as far as possible, and the superconductive condition can be created with stability, with the result that a stable filtering characteristic can be created.
    Type: Grant
    Filed: July 26, 2001
    Date of Patent: March 29, 2005
    Assignee: Fujitsu Limited
    Inventors: Manabu Kai, Kazunori Yamanaka, Tsuyoshi Hasegawa, Toru Maniwa
  • Publication number: 20050058183
    Abstract: MIXR is implemented with a realistic amount of hardware even when the number of detected paths is large. From among path timings detected by a path searcher and MICTs generated based on the detected path timings, as many timings as there are fingers are selected by a timing selector and the selected timings are assigned to the fingers. When selecting the timings, the value of SNIR expected to be achieved by RAKE combining in a RAKE combiner, for example, is predicted by calculation from a received signal, and the path timing and MICT that maximize the SNIR are selected.
    Type: Application
    Filed: February 26, 2004
    Publication date: March 17, 2005
    Inventors: Daisuke Ogawa, Hideto Furukawa, Takashi Dateki, Masahiko Shimizu, Tsuyoshi Hasegawa
  • Publication number: 20050034746
    Abstract: The method of the present invention cleans abrasive faces of an upper abrasive plate and a lower abrasive plate of an abrasive machine. The method is executed by a cleaning device including: a nozzle for jetting water; a brush for preventing the jetted water from scattering in the air, the brush enclosing the nozzle; and another brush for closing a gap between the preventing brush and an outer edge of the upper abrasive plate, the method is characterized by the steps of: jetting water from the nozzle toward the abrasive face of the upper abrasive plate; moving the nozzle toward the outer edge of the upper abrasive plate; and closing the gap by the closing brush when the gap is formed between the preventing brush and the outer edge of the upper abrasive plate.
    Type: Application
    Filed: September 9, 2004
    Publication date: February 17, 2005
    Applicant: Fujikoshi Machinery Corp.
    Inventors: Yasuhide Denda, Yoshio Nakamura, Yoshinobu Nishimoto, Makoto Nakajima, Tsuyoshi Hasegawa, Norihiko Moriya
  • Publication number: 20050028843
    Abstract: The method of the present invention cleans abrasive faces of an upper abrasive plate and a lower abrasive plate of an abrasive machine. The method is executed by a cleaning device including: a nozzle for jetting water; a brush for preventing the jetted water from scattering in the air, the brush enclosing the nozzle; and another brush for closing a gap between the preventing brush and an outer edge of the upper abrasive plate, the method is characterized by the steps of: jetting water from the nozzle toward the abrasive face of the upper abrasive plate; moving the nozzle toward the outer edge of the upper abrasive plate; and closing the gap by the closing brush when the gap is formed between the preventing brush and the outer edge of the upper abrasive plate.
    Type: Application
    Filed: September 9, 2004
    Publication date: February 10, 2005
    Applicant: Fujikoshi Machinery Corp.
    Inventors: Yasuhide Denda, Yoshio Nakamura, Yoshinobu Nishimoto, Makoto Nakajima, Tsuyoshi Hasegawa, Norihiko Moriya