Patents by Inventor Masashi Shiraishi

Masashi Shiraishi 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: 20060108906
    Abstract: A method of manufacturing a tubular carbon molecule capable of regularly aligning a carbon nanotube with a finer spacing is provided. A catalyst is arranged on a material substrate (10) made of a semiconductor such as silicon (Si) and including iron (Fe) as a catalyst through the use of melting according to a modulated heat distribution (11). The heat distribution (11) is formed, for example, through diffracting an energy beam (12) by a diffraction grating (13). As a method of arranging the catalyst, for example, iron may be deposited in a planar shape or a projection shape in a position corresponding to the heat distribution (11), or the deposited iron may be used as a master to be transferred to another substrate. A carbon nanotube is grown through the use of the arranged catalyst. The grown carbon nanotube can be used as a recording apparatus, a field electron emission device, an FED or the like.
    Type: Application
    Filed: January 8, 2004
    Publication date: May 25, 2006
    Inventors: Dharam Gosain, Hisashi Kajiura, Ryuichiro Maruyama, Masashi Shiraishi, Houjin Huang, Koji Kadono, Shigeaki Wachi, Masafumi Ata
  • Publication number: 20060104762
    Abstract: A method and mechanism for visually inspecting both sides of components for a hard disk drive are disclosed. The components are stored in the containment units of a packing tray, with an exchange tray with matching containment units placed above and in contact with the packing tray. The components could be magnetic read/write heads, head gimbal assemblies, or other parts of hard disk drive. The two trays are rotated, using gravity to cause the components to move from the packing containment unit to the exchange containment unit.
    Type: Application
    Filed: November 18, 2005
    Publication date: May 18, 2006
    Inventors: Ming Gao Yao, Masashi Shiraishi, Yi Ru Xie
  • Publication number: 20060104763
    Abstract: A method and mechanism for visually inspecting both sides of components for a hard disk drive are disclosed. The components are stored in the containment units of a packing tray, with an exchange tray with matching containment units placed above and in contact with the packing tray. The components could be magnetic read/write heads, head gimbal assemblies, or other parts of hard disk drive. The two trays are rotated, using gravity to cause the components to move from the packing containment unit to the exchange containment unit.
    Type: Application
    Filed: November 18, 2005
    Publication date: May 18, 2006
    Inventors: Ming Yao, Masashi Shiraishi, Yi Xie
  • Patent number: 7045240
    Abstract: A power generating apparatus includes a proton conductor unit, containing a fullerene derivative, a hydrogen electrode bonded to one surface of the proton conductor unit, an oxygen electrode bonded to the other surface of the proton conductor unit, and a hydrogen gas supplying unit for supplying a hydrogen gas at a pressure of approximately 0.2 to approximately 3.5 atm to the hydrogen electrode. The present power generating apparatus effectively suppresses transmission of hydrogen and oxygen gases so that it is possible to prevent the hydrogen gas from being emitted to atmosphere due to transmission as well as to prevent the oxygen gas from reaching the hydrogen electrode on transmission to prevent the hydrogen gas from being consumed without contributing to power generation.
    Type: Grant
    Filed: January 9, 2002
    Date of Patent: May 16, 2006
    Assignee: Sony Corporation
    Inventors: Atsuo Yamada, Hisashi Kajiura, Masashi Shiraishi, Ryuichiro Maruyama, Yasuhiro Watanabe, Takahiro Nakamura, Hiroshi Miyazawa
  • Publication number: 20060098348
    Abstract: A method and system for manufacture of a microactuator comprising a frame further including a base to connect with suspension and two moving arms to be connected parallel to said base, two piezoelectric elements to be respectively connected to said moving arm, and a slider height adjuster connecting with said moving arms to adjust the loading height of the slider.
    Type: Application
    Filed: October 26, 2005
    Publication date: May 11, 2006
    Inventors: Ming Yao, Masashi Shiraishi
  • Publication number: 20060098347
    Abstract: A HGA includes a slider; a micro-actuator comprising a bottom plate, a moving plate, and two arm plates symmetrically disposed with an axis of the bottom plate as symmetry axis to connect the moving plate and the bottom plate; and at least one piezoelectric pieces to be bonded to the arm plates; and a suspension to load the slider and the micro-actuator. The slider is mounted on and rotated by the moving plate when exciting the at least one piezoelectric pieces. The invention also discloses a structure of the disk drive unit.
    Type: Application
    Filed: November 10, 2004
    Publication date: May 11, 2006
    Applicant: SAE Magnetics (H.K.) Ltd.
    Inventors: MingGao Yao, YiRu Xie, Masashi Shiraishi
  • Patent number: 7037622
    Abstract: A hydrogen-storing carbonaceous material is provided. The hydrogen-storing carbonaceous material is obtained by heating a carbonaceous material at lower than about 800° C. before hydrogen is stored under the pressure of hydrogen of about 50 atmospheric pressure or higher. The present invention also provides hydrogen-stored carbonaceous material that is obtained by hydrogen storage in the hydrogen-storing carbonaceous material under the pressure of hydrogen of about 50 atmospheric pressure or higher. This hydrogen-stored carbonaceous material is used for a battery or a fuel cell. The hydrogen-stored carbonaceous material is heated at lower than about 800° C. before the hydrogen is stored under the pressure of hydrogen of about 50 atmospheric pressure or higher, so that the hydrogen-storing carbonaceous material whose hydrogen storage capacity is greatly enhanced can be produced.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: May 2, 2006
    Assignee: Sony Corporation
    Inventors: Eisuke Negishi, Masashi Shiraishi, Hisashi Kajiura
  • Publication number: 20060082917
    Abstract: A HGA comprises a slider, a suspension to load the slider, a flying height controller for controlling flying height of the slider; and a flexible cable to be electrically connected with the slider and the flying height controller. In the present invention, the flying height controller comprises at least one piezoelectric piece disposed between the slider and the suspension. The HGA further comprises ACF to connect the flying height controller with the suspension and the flexible cable. The invention also discloses a disk drive unit with the HGA, a method for flying height control with the HGA, and a system for controlling flying height.
    Type: Application
    Filed: October 18, 2004
    Publication date: April 20, 2006
    Applicant: SAE Magnetics (H.K.) Ltd.
    Inventors: MingGao Yao, Masashi Shiraishi
  • Publication number: 20060072247
    Abstract: A HGA includes a slider, a micro-actuator horizontally rotating the slider with a central portion of the slider as a rotation center, and a suspension to load the slider and the micro-actuator; wherein the micro-actuator comprises a support frame having a base, a moving plate, and a leading beam to connect the base and the moving plate; and at least one piezoelectric pieces to be connected with the base and the moving plate; wherein the leading beam has a pivot part to assist the horizontal swing of the slider. The pivot part has a narrower width than that of the leading beam. The suspension also includes a support means to support the base of the support frame on a suspension tongue portion. The invention also discloses a disk drive unit having the HGA.
    Type: Application
    Filed: October 1, 2004
    Publication date: April 6, 2006
    Applicant: SAE Magnetics (H.K.) Ltd.
    Inventors: MingGao Yao, Masashi Shiraishi
  • Patent number: 7023663
    Abstract: A system and method for improving the process of attaching a hard disk micro-actuator to a slider device with a bonding agent such as epoxy, the slider having design characteristics to avoid various problems associated with bonding the components with a bonding agent such as epoxy.
    Type: Grant
    Filed: August 6, 2003
    Date of Patent: April 4, 2006
    Assignee: SAE Magnetice (H.K.) Ltd.
    Inventors: Ming Gao Yao, Masashi Shiraishi
  • Patent number: 7014951
    Abstract: A hydrogen-stored carbonaceous material is provided. The present invention relates to a hydrogen-stored carbonaceous material obtained by storing hydrogen in a carbonaceous material heated at more than about 230° C. under pressure in a reducing atmosphere, a battery and a fuel cell using same. The carbonaceous material is heated at more than about 230° C. under pressure in a reducing atmosphere so that its surface can be efficiently cleaned and an area where the surface of the carbonaceous material comes into contact with hydrogen atoms or hydrogen molecules is increased.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: March 21, 2006
    Assignee: Sony Corporation
    Inventors: Hisashi Kajiura, Masashi Shiraishi, Eisuke Negishi, Masafumi Ata
  • Patent number: 7014952
    Abstract: A hydrogen-storing carbonaceous material is provided. The hydrogen-storing carbonaceous material is obtained by heating a carbonaceous material in a gas atmosphere including hydrogen gas and substantially including no reactive gas as impurity gas to store hydrogen. According to the present invention, since the surface of the carbonaceous material can be cleaned and hydrogen can be stored in the carbonaceous material in the same gas atmosphere and a hydrogen-stored carbonaceous material can be produced by controlling a heating process time in the gas atmosphere including the hydrogen gas and substantially including no reactive gas as the impurity gas. This can facilitate the use of the hydrogen-stored carbonaceous material as applied to devices, systems, processes and/or the like.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: March 21, 2006
    Assignee: Sony Corporation
    Inventors: Masashi Shiraishi, Hisashi Kajiura, Eisuke Negishi, Masafumi Ata
  • Patent number: 7016155
    Abstract: A vibration-canceling mechanism includes a vibration transfer member of a plane shape inserted between a vibration-origination system having at least one resonance frequency and an object to which a vibration is applied from the vibration-origination system. The vibration transfer member has a resonance frequency equal to or near the at least one resonance frequency of the vibration-origination system. A center of one end section of the vibration transfer member is coupled by a single arm section to a center of the other end section of the vibration transfer member. The one end section of the vibration transfer member is fixed to the vibration-origination system and the other end section of the vibration transfer member is fixed to the object so that an apparent vibration of the object is substantially canceled by a resonance of the vibration transfer member.
    Type: Grant
    Filed: May 11, 2004
    Date of Patent: March 21, 2006
    Assignee: SAE Magnetics (H.K.) Ltd.
    Inventors: Tamon Kasajima, Masashi Shiraishi
  • Patent number: 7015689
    Abstract: A method of connecting a plurality of probe pins to a plurality of first external connection pads, which are provided on a head gimbal assembly and are electrically connected to a plurality of terminal electrodes of a write magnetic head element, respectively, and a plurality of second external connection pads, which are provided on the head gimbal assembly and are electrically connected to a plurality of terminal electrodes of a read magnetic head element. In the connection method, an approach direction of the probe pins to the first external connection pads and an approach direction of the probe pins to the second external connection pads are made different from each other.
    Type: Grant
    Filed: December 16, 2003
    Date of Patent: March 21, 2006
    Assignee: SAE Magnetics (H.K.) Ltd.
    Inventors: Tamon Kasajima, Masashi Shiraishi
  • Publication number: 20060056096
    Abstract: To realize stable reading/writing of data by making a positioning control of a magnetic head slider highly accurate. There are provided a magnetic head assembly including: a magnetic head slider for reading/writing of data with respect to a rotating magnetic disk; a suspension for supporting the magnetic head slider; and an air flow regulating device for regulating the air flow amount flown in between the magnetic disk and the magnetic head slider along with the rotation of the magnetic disk.
    Type: Application
    Filed: September 8, 2005
    Publication date: March 16, 2006
    Applicant: SAE Magnetics (H.K.) Ltd.
    Inventors: Hiroyoshi Nakajima, Masashi Shiraishi
  • Publication number: 20060050442
    Abstract: A head gimbal assembly includes a slider, a rotatable micro-actuator and a suspension to load the slider and the rotatable micro-actuator. The rotatable micro-actuator horizontally rotates the slider with a central portion of the slider as an axis, which includes a bottom plate to be connected with the suspension, two arm plates symmetrically disposed on the bottom plate with a central portion of the bottom plate as symmetry point and at least one piezoelectric pieces to be connected with the arm plates. Selectively, the amount of the arm plates can be four and four piezoelectric pieces to be connected with the four arm plates, respectively.
    Type: Application
    Filed: September 8, 2004
    Publication date: March 9, 2006
    Applicant: SAE Magnetics (H.K.) Ltd.
    Inventors: MingGao Yao, Masashi Shiraishi
  • Patent number: 7008725
    Abstract: A hydrogen-storing carbonaceous material is provided. The present invention provides a hydrogen-storing carbonaceous material obtained by heating a carbonaceous material at more than about 50° C. under the atmosphere of reducing gas, a hydrogen-stored carbonaceous material obtained by hydrogen storage in the carbonaceous material heated at more than about 50° C. under the atmosphere of reducing gas, and a battery or a fuel cell using the hydrogen-stored carbonaceous material.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: March 7, 2006
    Assignee: Sony Corporation
    Inventors: Hisashi Kajiura, Masashi Shiraishi, Eisuke Negishi, Masafumi Ata
  • Patent number: 6989949
    Abstract: A method of testing a performance of the HGA has a step of writing information from the at least one thin-film magnetic head element onto a magnetic disk with driving the actuator for displacement by applying an alternating drive signal to the actuator, a step of reading out the information of at least one rotation of the magnetic disk by the at least one thin-film magnetic head element without driving the actuator for displacement, a step of storing the information read-out from the magnetic disk as a read-out information along a disk-rotating direction, a step of moving the HGA toward an off-track direction by a predetermined distance, a step of repeatedly executing the reading, storing and moving steps to obtain two-dimensional read-out information along the disk-rotating direction and the off-track direction, and a step of determining, from the two-dimensional read-out information, an off-track position where the read-out information becomes maximum at each position along the disk-rotating direction, the
    Type: Grant
    Filed: January 17, 2003
    Date of Patent: January 24, 2006
    Assignees: SAE Magnetics (H.K.) Ltd., TDK Corporation
    Inventors: Tsz Lok Cheng, Tamon Kasajima, Masashi Shiraishi, Katsuhiko Tomita, Takashi Honda, Takeshi Wada
  • Patent number: 6981315
    Abstract: The invention is directed toward a method of manufacturing a flexure blank whereby an opening portion is provided in a in a connecting portion of a flexure blank, an opening end portion of an insulating base layer is coated with a conductive member without exposing the opening end portion of the insulating base layer in the connecting portion, and a lower surface of the conductive member of the opening portion in the connecting portion of the flexure blank is structured such as to form the same surface as the lower surface of the insulating base layer.
    Type: Grant
    Filed: December 3, 2002
    Date of Patent: January 3, 2006
    Assignees: Nippon Mektron, Ltd., TDK Corporation, NHK Spring Co., Ltd.
    Inventors: Norimasa Fujita, Akira Tadakuma, Yasuji Takagi, Ichiro Takadera, Akira Nojima, Masashi Shiraishi, Takeshi Wada
  • Publication number: 20050286176
    Abstract: A head gimbal assembly (HGA) comprising a slider, a suspension to load the slider, and a flying height adjuster to adjust the flying height of the slider. The flying height adjuster has at least one thin film piezoelectric piece or ceramic piezoelectric piece, which is disposed between the slider and the suspension. The HGA may further include a micro-actuator to horizontally adjust the position of the slider. The micro-actuator is a pinched type micro-actuator or a metal frame type micro-actuator. The invention also discloses a disk drive unit having such HGA and a method of manufacturing the HGA.
    Type: Application
    Filed: June 23, 2004
    Publication date: December 29, 2005
    Applicant: SAE Magnetics (H.K.) Ltd.
    Inventors: Ming Yao, Masashi Shiraishi