Patents by Inventor Yasuhiro Mita

Yasuhiro Mita 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: 20240145091
    Abstract: Provided herein is a method for modulating the amount of virus in a subject comprising administering to the subject an agent for controlling an indicator associated with a D-amino acid in the subject.
    Type: Application
    Filed: October 17, 2023
    Publication date: May 2, 2024
    Applicants: National Institutes of Biomedical Innovation, Health and Nutrition, Kagami Inc.
    Inventors: Tomonori KIMURA, Shihoko KIMURA, Yasuhiro YASUTOMI, Masamitsu ASAKA, Emiko URANO, Daichi UTSUMI, Masashi MITA
  • Patent number: 7480982
    Abstract: Embodiments of the invention relate to techniques to remove a defective head gimbal assembly (HGA) from a head stack assembly and replace the defective HGA with a good one without allowing any good HGAs to be damaged. In one embodiment, a volatile alcohol solvent is moved by gravity from a holder included in a reworking tool provided for a reworking jig to a shearing edge of a cartridge type edge mounted in the holder. The alcohol solvent is thereby deposited on the shearing edge in a drop-like shape through surface tension. The cartridge type edge is made to slide on a surface of an actuator arm and is inserted in a gap between contacting surfaces of a mount plate and the actuator arm. This assigns the drop-like alcohol solvent a function as a lubricant. Possible vibration can therefore be prevented from being transmitted through a carriage to other HGAs.
    Type: Grant
    Filed: October 18, 2005
    Date of Patent: January 27, 2009
    Assignee: Hitachi GLobal Storage Technologies Netherlands B.V.
    Inventors: Junichi Hosaka, Yasuhiro Mita, Katsuo Tsubaki
  • Patent number: 7168154
    Abstract: An integrated lead suspension includes a solder ball that is placed between a lead wiring pad provided on a flexure of the suspension, and a bonding pad provided on a slider of a head gimbal section. The lead wiring pad and bonding pad are soldered by melting the solder ball. As a result, there is provided a recessed section into which a solder ball is placed by way of surface raised sections, using gravitational force, in the vicinity of the center line of the surface of the lead wiring pad. In this way the position of the solder ball is not displaced from the center line when a bonding pad and lead wiring pad are connected by means of a solder ball.
    Type: Grant
    Filed: October 13, 2004
    Date of Patent: January 30, 2007
    Assignee: Hitachi Global Storage Technologies Netherlands BV
    Inventors: Tatsumi Tsuchiya, Yuhsuke Matsumoto, Takaaki Murokawa, Naoki Fujii, Takuya Satoh, Yasuhiro Mita, Hiroyasu Tsuchida, Yoshio Uematsu
  • Patent number: 7137189
    Abstract: An integrated lead suspension includes a solder ball that is placed between a lead wiring pad provided on a flexure of the suspension, and a bonding pad provided on a slider of a head gimbal section. The lead wiring pad and bonding pad are soldered by melting the solder ball. As a result, there is provided a recessed section into which a solder ball is placed by way of surface raised sections, using gravitational force, in the vicinity of the center line of the surface of the lead wiring pad. In this way the position of the solder ball is not displaced from the center line when a bonding pad and lead wiring pad are connected by means of a solder ball.
    Type: Grant
    Filed: October 13, 2004
    Date of Patent: November 21, 2006
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Tatsumi Tsuchiya, Yuhsuke Matsumoto, Takaaki Murokawa, Naoki Fujii, Takuya Satoh, Yasuhiro Mita, Hiroyasu Tsuchida, Yoshio Uematsu
  • Patent number: 7137188
    Abstract: An integrated lead suspension includes a solder ball that is placed between a lead wiring pad provided on a flexure of the suspension, and a bonding pad provided on a slider of a head gimbal section. The lead wiring pad and bonding pad are soldered by melting the solder ball. As a result, there is provided a recessed section into which a solder ball is placed by way of surface raised sections, using gravitational force, in the vicinity of the center line of the surface of the lead wiring pad. In this way the position of the solder ball is not displaced from the center line when a bonding pad and lead wiring pad are connected by means of a solder ball.
    Type: Grant
    Filed: October 13, 2004
    Date of Patent: November 21, 2006
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Tatsumi Tsuchiya, Yuhsuke Matsumoto, Takaaki Murokawa, Naoki Fujii, Takuya Satoh, Yasuhiro Mita, Hiroyasu Tsuchida, Yoshio Uematsu
  • Publication number: 20060085970
    Abstract: Embodiments of the invention relate to techniques to remove a defective head gimbal assembly (HGA) from a head stack assembly and replace the defective HGA with a good one without allowing any good HGAs to be damaged. In one embodiment, a volatile alcohol solvent is moved by gravity from a holder included in a reworking tool provided for a reworking jig to a shearing edge of a cartridge type edge mounted in the holder. The alcohol solvent is thereby deposited on the shearing edge in a drop-like shape through surface tension. The cartridge type edge is, in this condition, made to slide on a surface of an actuator arm and is thereby inserted in a gap between contacting surfaces of a base plate of a mount plate and the actuator arm. This assigns the drop-like alcohol solvent a function as a lubricant. Possible vibration can therefore be prevented from being transmitted through a carriage to other HGAs.
    Type: Application
    Filed: October 18, 2005
    Publication date: April 27, 2006
    Applicant: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Junichi Hosaka, Yasuhiro Mita, Katsuo Tsubaki
  • Patent number: 6989969
    Abstract: An integrated lead suspension includes a solder ball that is placed between a lead wiring pad provided on a flexure of the suspension, and a bonding pad provided on a slider of a head gimbal section. The lead wiring pad and bonding pad are soldered by melting the solder ball. As a result, there is provided a recessed section into which a solder ball is placed by way of surface raised sections, using gravitational force, in the vicinity of the center line of the surface of the lead wiring pad. In this way the position of the solder ball is not displaced from the center line when a bonding pad and lead wiring pad are connected by means of a solder ball.
    Type: Grant
    Filed: October 13, 2004
    Date of Patent: January 24, 2006
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Tatsumi Tsuchiya, Yuhsuke Matsumoto, Takaaki Murokawa, Naoki Fujii, Takuya Satoh, Yasuhiro Mita, Hiroyasu Tsuchida, Yoshio Uematsu
  • Patent number: 6985335
    Abstract: An integrated lead suspension includes a solder ball that is placed between a lead wiring pad provided on a flexure of the suspension, and a bonding pad provided on a slider of a head gimbal section. The lead wiring pad and bonding pad are soldered by melting the solder ball. As a result, there is provided a recessed section into which a solder ball is placed by way of surface raised sections, using gravitational force, in the vicinity of the center line of the surface of the lead wiring pad. In this way the position of the solder ball is not displaced from the center line when a bonding pad and lead wiring pad are connected by means of a solder ball.
    Type: Grant
    Filed: October 13, 2004
    Date of Patent: January 10, 2006
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Tatsumi Tsuchiya, Yuhsuke Matsumoto, Takaaki Murokawa, Naoki Fujii, Takuya Satoh, Yasuhiro Mita, Hiroyasu Tsuchida, Yoshio Uematsu
  • Publication number: 20050078415
    Abstract: An integrated lead suspension includes a solder ball that is placed between a lead wiring pad provided on a flexure of the suspension, and a bonding pad provided on a slider of a head gimbal section. The lead wiring pad and bonding pad are soldered by melting the solder ball. As a result, there is provided a recessed section into which a solder ball is placed by way of surface raised sections, using gravitational force, in the vicinity of the center line of the surface of the lead wiring pad. In this way the position of the solder ball is not displaced from the center line when a bonding pad and lead wiring pad are connected by means of a solder ball.
    Type: Application
    Filed: October 13, 2004
    Publication date: April 14, 2005
    Inventors: Tatsumi Tsuchiya, Yuhsuke Matsumoto, Takaaki Murokawa, Naoki Fujii, Takuya Satoh, Yasuhiro Mita, Hiroyasu Tsuchida, Yoshio Uematsu
  • Patent number: 6879465
    Abstract: An integrated lead suspension includes a solder ball that is placed between a lead wiring pad provided on a flexure of the suspension, and a bonding pad provided on a slider of a head gimbal section. The lead wiring pad and bonding pad are soldered by melting the solder ball. As a result, there is provided a recessed section into which a solder ball is placed by way of surface raised sections, using gravitational force, in the vicinity of the center line of the surface of the lead wiring pad. In this way the position of the solder ball is not displaced from the center line when a bonding pad and lead wiring pad are connected by means of a solder ball.
    Type: Grant
    Filed: June 11, 2003
    Date of Patent: April 12, 2005
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Tatsumi Tsuchiya, Yuhsuke Matsumoto, Takaaki Murokawa, Naoki Fujii, Takuya Satoh, Yasuhiro Mita, Hiroyasu Tsuchida, Yoshio Uematsu
  • Patent number: 6871392
    Abstract: An integrated lead suspension includes a solder ball that is placed between a lead wiring pad provided on a flexure of the suspension, and a bonding pad provided on a slider of a head gimbal section. The lead wiring pad and bonding pad are soldered by melting the solder ball. As a result, there is provided a recessed section into which a solder ball is placed by way of surface raised sections, using gravitational force, in the vicinity of the center line of the surface of the lead wiring pad. In this way the position of the solder ball is not displaced from the center line when a bonding pad and lead wiring pad are connected by means of a solder ball.
    Type: Grant
    Filed: September 26, 2002
    Date of Patent: March 29, 2005
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Tatsumi Tsuchiya, Yuhsuke Matsumoto, Takaaki Murokawa, Naoki Fujii, Takuya Satoh, Yasuhiro Mita, Hiroyasu Tsuchida, Yoshio Uematsu
  • Publication number: 20050063096
    Abstract: An integrated lead suspension includes a solder ball that is placed between a lead wiring pad provided on a flexure of the suspension, and a bonding pad provided on a slider of a head gimbal section. The lead wiring pad and bonding pad are soldered by melting the solder ball. As a result, there is provided a recessed section into which a solder ball is placed by way of surface raised sections, using gravitational force, in the vicinity of the center line of the surface of the lead wiring pad. In this way the position of the solder ball is not displaced from the center line when a bonding pad and lead wiring pad are connected by means of a solder ball.
    Type: Application
    Filed: October 13, 2004
    Publication date: March 24, 2005
    Inventors: Tatsumi Tsuchiya, Yuhsuke Matsumoto, Takaaki Murokawa, Naoki Fujii, Takuya Satoh, Yasuhiro Mita, Hiroyasu Tsuchida, Yoshio Uematsu
  • Publication number: 20050047009
    Abstract: An integrated lead suspension includes a solder ball that is placed between a lead wiring pad provided on a flexure of the suspension, and a bonding pad provided on a slider of a head gimbal section. The lead wiring pad and bonding pad are soldered by melting the solder ball. As a result, there is provided a recessed section into which a solder ball is placed by way of surface raised sections, using gravitational force, in the vicinity of the center line of the surface of the lead wiring pad. In this way the position of the solder ball is not displaced from the center line when a bonding pad and lead wiring pad are connected by means of a solder ball.
    Type: Application
    Filed: October 13, 2004
    Publication date: March 3, 2005
    Inventors: Tatsumi Tsuchiya, Yuhsuke Matsumoto, Takaaki Murokawa, Naoki Fujii, Takuya Satoh, Yasuhiro Mita, Hiroyasu Tsuchida, Yoshio Uematsu
  • Publication number: 20050047022
    Abstract: An integrated lead suspension includes a solder ball that is placed between a lead wiring pad provided on a flexure of the suspension, and a bonding pad provided on a slider of a head gimbal section. The lead wiring pad and bonding pad are soldered by melting the solder ball. As a result, there is provided a recessed section into which a solder ball is placed by way of surface raised sections, using gravitational force, in the vicinity of the center line of the surface of the lead wiring pad. In this way the position of the solder ball is not displaced from the center line when a bonding pad and lead wiring pad are connected by means of a solder ball.
    Type: Application
    Filed: October 13, 2004
    Publication date: March 3, 2005
    Inventors: Tatsumi Tsuchiya, Yuhsuke Matsumoto, Takaaki Murokawa, Naoki Fujii, Takuya Satoh, Yasuhiro Mita, Hiroyasu Tsuchida, Yoshio Uematsu
  • Publication number: 20050047020
    Abstract: An integrated lead suspension includes a solder ball that is placed between a lead wiring pad provided on a flexure of the suspension, and a bonding pad provided on a slider of a head gimbal section. The lead wiring pad and bonding pad are soldered by melting the solder ball. As a result, there is provided a recessed section into which a solder ball is placed by way of surface raised sections, using gravitational force, in the vicinity of the center line of the surface of the lead wiring pad. In this way the position of the solder ball is not displaced from the center line when a bonding pad and lead wiring pad are connected by means of a solder ball.
    Type: Application
    Filed: October 13, 2004
    Publication date: March 3, 2005
    Inventors: Tatsumi Tsuchiya, Yuhsuke Matsumoto, Takaaki Murokawa, Naoki Fujii, Takuya Satoh, Yasuhiro Mita, Hiroyasu Tsuchida, Yoshio Uematsu
  • Patent number: 6848167
    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: Grant
    Filed: June 12, 2001
    Date of Patent: February 1, 2005
    Assignee: International Business Machines Corporation
    Inventors: Yasuhiro Mita, Kohichiroh Naka, Takuya Satoh, Tatsumi Tsuchiya, Tatsushi Yoshida
  • Patent number: 6742694
    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: Grant
    Filed: February 13, 2002
    Date of Patent: June 1, 2004
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Takuya Satoh, Tatsumi Tsuchiya, Yasuhiro Mita, Lan Shi, Hiroyoshi Yokome, Tatsushi Yoshida, Surya Pattanaik
  • Publication number: 20030188887
    Abstract: An integrated lead suspension includes a solder ball that is placed between a lead wiring pad provided on a flexure of the suspension, and a bonding pad provided on a slider of a head gimbal section. The lead wiring pad and bonding pad are soldered by melting the solder ball. As a result, there is provided a recessed section into which a solder ball is placed by way of surface raised sections, using gravitational force, in the vicinity of the center line of the surface of the lead wiring pad. In this way the position of the solder ball is not displaced from the center line when a bonding pad and lead wiring pad are connected by means of a solder ball.
    Type: Application
    Filed: June 11, 2003
    Publication date: October 9, 2003
    Inventors: Tatsumi Tsuchiya, Yuhsuke Matsumoto, Takaaki Murokawa, Naoki Fujii, Takuya Satoh, Yasuhiro Mita, Hiroyasu Tsuchida, Yoshio Uematsu
  • Publication number: 20030070834
    Abstract: An integrated lead suspension includes a solder ball that is placed between a lead wiring pad provided on a flexure of the suspension, and a bonding pad provided on a slider of a head gimbal section. The lead wiring pad and bonding pad are soldered by melting the solder ball. As a result, there is provided a recessed section into which a solder ball is placed by way of surface raised sections, using gravitational force, in the vicinity of the center line of the surface of the lead wiring pad. In this way the position of the solder ball is not displaced from the center line when a bonding pad and lead wiring pad are connected by means of a solder ball.
    Type: Application
    Filed: September 26, 2002
    Publication date: April 17, 2003
    Applicant: International Business Machines Corporation
    Inventors: Tatsumi Tsuchiya, Yuhsuke Matsumoto, Takaaki Murokawa, Naoki Fujii, Takuya Satoh, Yasuhiro Mita, Hiroyasu Tsuchida, Yoshio Uematsu
  • Patent number: 6493189
    Abstract: A head gimbal assembly is provided with a slider that flies above the surface of a disk, and a head for reading/writing data from/onto the surface of the disk. One or more conductive wires are connected to the head and are used to transmit data. A load beam supports the wire(s) thereon and holds the head/slider near a front end of the load beam. Each wire forms a wire loop between the head connecting point edge and the wire fixing point. A predetermined portion of each wire loop is pressed from above on the surface of the load beam, and then pushed toward the head connecting point edge, thereby plastically deforming a section between the head connecting point edge and the predetermined portion of the wire loop.
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: December 10, 2002
    Assignee: International Business Machines Corporation
    Inventors: Kenji Itoh, Yasuhiro Mita, Masaaki Nanba, Tatsushi Yoshida