Patents by Inventor Tomokazu Takahashi

Tomokazu Takahashi 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: 20040126575
    Abstract: Disclosed is a pressure-sensitive adhesive sheet for use in processing a product such a semiconductor wafer. To provide a pressure-sensitive adhesive sheet that provides a minimized number of broken semiconductor wafers during the process of polishing them and that produces a less curl of the wafer due to the residual stress of the pressure-sensitive adhesive sheet, the pressure-sensitive adhesive sheet includes a composite film formed from a composition containing a urethane polymer and a vinyl polymer as effective components, a first film comprising a material different from that of the composite film, and a pressure-sensitive adhesive layer, in which the pressure-sensitive adhesive sheet has a modulus of 9 N/mm2 or more and 250 N/mm2 or less when an oblong piece of the pressure-sensitive adhesive sheet with a width of 20 mm is bent at a radius of curvature of 3.0 mm.
    Type: Application
    Filed: July 24, 2003
    Publication date: July 1, 2004
    Applicant: NITTO DENKO CORPORATION
    Inventors: Yoshinori Yoshida, Yohei Maeno, Kouji Akazawa, Takeshi Matsumura, Tomokazu Takahashi
  • Patent number: 6418155
    Abstract: A laser device which repeats a cycle of burst mode operation in each of which continuous oscillating operations for continuously pulsatively oscillating laser light by a prescribed number of times and stopping operations for stopping the pulsative oscillation for a prescribed pausing time are alternately executed, controls the power supply voltage of the laser device so that each output energy of the pulsative oscillation can become coincide with a target value, finds the difference between the output voltage of each pulse and the target value at every pulse and, for a pulse for which the difference exceeds tolerance limits, corrects and updates the power supply voltage value stored in the voltage data table means corresponding to the pulse number of the pulse and the measured oscillation pausing time by using the control gain of a control gain setting means set in the block corresponding to the pulse number and the measured oscillation pausing time and the difference, so as to always make the pulse energy of
    Type: Grant
    Filed: June 17, 1999
    Date of Patent: July 9, 2002
    Assignee: Komatsu Ltd.
    Inventors: Osamu Wakabayashi, Tatsuya Ariga, Toru Igarashi, Shoichi Sakanishi, Tomokazu Takahashi
  • Publication number: 20010005833
    Abstract: When a customer buys a product at a store or by way of storeless sales system 5 (web server), that product is automatically registered with data management system 4 as an item owned by the customer. Storeless sales system 5, either at regular intervals or on demand, updates resale prices for items owned by the customer within data management system 4 to most-recent values therefor, and displays these on a customer website which can be accessed by customer terminal 7. When a customer at customer terminal 7 views, from that customer website, a catalog page for a product he wishes to purchase, storeless sales system 5 furthermore displays that catalog such that a difference in price between the selling price of the product the customer wishes to purchase and the resale price of an item owned by that customer are calculated thereon.
    Type: Application
    Filed: December 22, 2000
    Publication date: June 28, 2001
    Inventors: Jeorge Asami, Kazuki Hirohata, Masaharu Kuribayashi, Tomokazu Takahashi
  • Patent number: 5450436
    Abstract: A laser system which realizes its stable operation. In the system, a spectrum width of laser light dischargingly excited in a laser chamber is detected by a spectrum width monitor. A controller controls, on the basis of the detected spectrum width, a replenishment amount of gas to be replenished from an F2 gas cylinder into the laser chamber through a sub-tank and on-off valves to cause the spectrum width to become constant.Further, when replenishment of a halogen gas diluted with a buffer gas is carried out, a gas exhaustion step of keeping the internal total gas pressure of the laser chamber constant is omitted.In addition, a laser oscillation pulse number is counted for a predetermined period of time and a replenishment amount of the halogen gas is carried out according to the count value.
    Type: Grant
    Filed: November 19, 1993
    Date of Patent: September 12, 1995
    Assignee: Kabushiki Kaisha Komatsu Seisakusho
    Inventors: Hakaru Mizoguchi, Junichi Fujimoto, Masahiko Kowaka, Tomokazu Takahashi
  • Patent number: 4569550
    Abstract: An apparatus for automatically mounting an electronic circuit element on a printed circuit board which is capable of dealing with an electronic circuit element having two lead wires of the large interval, that having two lead wires of the small interval, and that having three lead wires. The apparatus includes a mechanism for holding and transferring an electronic circuit element to a printed circuit board which comprises a fixed pawl formed with a central recess and a pair of side steps, and a pair of movable pawls openable with respect to the fixed pawl wherein the movable pawls are adapted to be in cooperation with the fixed pawl to securely interpose lead wires of an electronic circuit element positioned in the central recess and one of the side steps between one of the movable pawls and the fixed pawl.
    Type: Grant
    Filed: June 18, 1984
    Date of Patent: February 11, 1986
    Assignee: TDK Corporation
    Inventors: Kotaro Harigane, Tomokazu Takahashi