Patents by Inventor Takuya Satoh

Takuya Satoh 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: 6441301
    Abstract: A solar cell with good characteristics and high reliability is provided that includes a semiconductor comprising at least one element from each of groups Ib, IIIb, and VIb. A method of manufacturing the same also is provided. The solar cell includes a conductive base, a first insulating layer formed on one principal plane of the base, a second insulating layer formed on a second principal plane of the base, and a light-absorption layer disposed above the first insulating layer. The light-absorption layer is formed of a semiconductor comprising at least one element from each of groups Ib, IIIb, and VIb.
    Type: Grant
    Filed: March 12, 2001
    Date of Patent: August 27, 2002
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Takuya Satoh, Takayuki Negami, Shigeo Hayashi, Yasuhiro Hashimoto, Shinichi Shimakawa
  • Publication number: 20020113115
    Abstract: An apparatus joins bonding pads of a slider and lead pads of lead wires in a head gimbals assembly to improve efficiency, downsizing, and maintenance of solder-ball disposing devices, and solder-ball reflow devices for reflowing solder balls. The solder-ball disposing apparatus discharges solder balls from solder-ball discharging holes of a solder-ball feeder unit which are evacuated by a suction pad. An environmental space and an inert-gas supply portion for forming inactive atmosphere are formed on a table to eliminate an inert-gas supply unit from an optical unit, so that converged laser beams are directly radiated onto the solder balls.
    Type: Application
    Filed: February 13, 2002
    Publication date: August 22, 2002
    Applicant: International Business Machines Corporation
    Inventors: Takuya Satoh, Tatsumi Tsuchiya, Yasuhiro Mita, Lan Shi, Hiroyoshi Yokome, Tatsushi Yoshida, Surya Pattanaik
  • Patent number: 6382499
    Abstract: An integrated suspension for a slider in a magnetic record system has a simplified structure relatively easy to manufacture. This new integrated suspension is assembled from separate pieces including a load beam a flexure and a mount plate. The flexure includes a flexible member and a conductive lead integrally formed thereon. Since the flexible member is of super-thin type, the flexion of the flexure is minimized by the support using a platform support in an ultrasonic bonding of its conductive lead with a bonding pad of the slider. Besides, to minimize the deflection, an ultrasonic bonding is executed in close order of distance to support portion. Furthermore, a tab extending from the tip of the load beam is used so as not to affect the flexure regarded as a fine piece.
    Type: Grant
    Filed: August 26, 1998
    Date of Patent: May 7, 2002
    Assignee: International Business Machines Corporation
    Inventors: Takuya Satoh, Tatsushi Yoshida, Tatsumi Tsuchiya, Naoki Kurosu
  • Publication number: 20020043278
    Abstract: A solar cell includes a first semiconductor layer that is p-type, and a second semiconductor layer that is n-type formed over the first semiconductor layer. The solar cell includes a layer A made of a semiconductor different from the first semiconductor layer and the second semiconductor layer or an insulator between the first semiconductor layer and the second semiconductor layer. The band gap Eg1 of the first semiconductor layer and the band gap Eg2 of the second semiconductor layer satisfy the relationship Eg1<Eg2. The electron affinity &khgr;1 (eV) of the first semiconductor layer and the electron affinity &khgr;2 (eV) of the second semiconductor layer satisfy the relationship 0≦(&khgr;1−&khgr;2)<0.5, and the average layer thickness of the layer A is 1 nm or more and 20 nm or less.
    Type: Application
    Filed: October 5, 2001
    Publication date: April 18, 2002
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yasuhiro Hashimoto, Takayuki Negami, Shigeo Hayashi, Takuya Satoh
  • Publication number: 20010054225
    Abstract: A head gimbal assembly, which is a component of a hard disk drive, has a bending portion that has elasticity and is bent at a predetermined angle under an unloaded condition, and a slider is bonded to a holding portion thereof by mounting the head gimbal assembly on a bonding jig in a state in which the bending portion is stretched. When the head gimbal assembly is separated from the bonding jig after bonding, the bending portion is not restored freely, so that the head gimbal assembly is caught by the bonding jig during the separating process and a locked state is sometimes established.
    Type: Application
    Filed: June 12, 2001
    Publication date: December 27, 2001
    Applicant: International Business Machines Corporation
    Inventors: Yasuhiro Mita, Kohichiroh Naka, Takuya Satoh, Tatsumi Tsuchiya, Tatsushi Yoshida
  • Patent number: 6321974
    Abstract: A plurality of bonding pads formed on a slider are integrally joined to an elastic flexure for a disk drive suspension. The pads are ultrasonically bonded to the slider with leads that are held by the flexure. The bonding portions of the leads face and are pressed against the pads with ultrasonic waves. The leads are plastically deformed during these steps to prevent the flexure from being deformed after the ultrasonic bonding process.
    Type: Grant
    Filed: April 20, 2000
    Date of Patent: November 27, 2001
    Assignee: International Business Machines Corporation
    Inventors: Tatsumi Tsuchiya, Tatsushi Yoshida, Takuya Satoh, Akiko Hayashi
  • Patent number: 6052259
    Abstract: A head support arm of a disk drive device comprises; a front portion supporting a head/slider assembly, a rear portion pivotally mounted on a frame of the disk drive device, a bending portion between the front portion and the rear portion, a plurality of electrically conductive wires covered by a tube, and a first fixing position and a second fixing position symmetrically located on both sides of a center line of the head support arm at positions between the bending portion and the front portion, characterized in that the tube is attached to the head support arm between the bending portion and the rear portion, the plurality of electrically conductive wires extending from a front end of the tube on the side of the front portion of the head support arm extend over the bending portion and are divided into a first group and a second group, the first group of wires is fixed to the second fixing position.
    Type: Grant
    Filed: June 17, 1998
    Date of Patent: April 18, 2000
    Assignee: International Business Machines Corporation
    Inventors: Yasuhiro Mita, Tatsushi Yoshida, Hiromi Ishikawa, Tatsuya Tanaka, Hiroyasu Tsuchida, Takuya Satoh