Patents by Inventor Takuma Muraki

Takuma Muraki 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: 11969662
    Abstract: There is provided a robot device including: a head portion coupled to a trunk; four leg portions on a front left, a front right, a rear left, and a rear right coupled to the trunk; a first indirect portion that tilts the head portion left and right; and a second joint portion that rotates, with respect to the trunk, one of the leg portions on the rear left and the rear right to a front side, and the other to a rear side. It is possible to faithfully reproduce the movement of the four-legged animal by providing the first joint portion and the second joint portion.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: April 30, 2024
    Assignee: SONY CORPORATION
    Inventors: Hidenori Ishibashi, Tomoo Mizukami, Takuma Araki, Masato Muraki, Tomoyuki Arai, Goushi Koike, Takayuki Ito, Kouta Katsumura, Yohei Watanabe, Muneyuki Horiguchi, Takashi Maeda, Satoshi Muto, Hideo Miyano
  • Patent number: 9704520
    Abstract: Described herein is a connector assembly that comprises a head-gimbal assembly (HGA) tail connector, a flex connector, and an adhesive. The HGA tail connector comprises a pad support, an HGA pad coupled to the pad support, and an HGA trace coupled to the pad support and electrically coupled to the HGA pad. The flex connector comprises a substrate, comprising a first side and a second side, where the first side is opposite the second side. The flex connector also comprises a flex pad coupled to the first side of the substrate, a flex trace coupled to the second side of the substrate, and a via extending through the substrate from the first side to the second side. The via electrically couples the flex pad and the flex trace. Also, the adhesive adheres the HGA pad of the HGA connector in electrical contact with the flex pad of the flex connector.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: July 11, 2017
    Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
    Inventors: Shigeo Nakamura, Nobumasa Nishiyama, Takuma Muraki, Teruhiro Nakamiya
  • Patent number: 9129618
    Abstract: A stepped suspension load beam is described, such as for a hard disk drive, in which the main body is composed of a proximal portion that lies in a first plane, an intermediate portion between the proximal portion and a distal portion and that lies in a second plane that angles upward from the proximal portion, and a distal portion that lies in a third plane that angles back down from the intermediate portion, thereby forming a load beam stepped in the longitudinal direction. Further, the proximal portion may be formed to taper in at a first angle, the intermediate portion formed to taper in at a second angle that is less than the first angle, and the distal portion formed to taper in at a third angle greater than the first and second angles, thereby forming a load beam stepped in the transverse direction.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: September 8, 2015
    Assignee: HGST Netherlands B.V.
    Inventors: Hiroyasu Tsuchida, Takuma Muraki, Yasuo Kojima
  • Patent number: 8130470
    Abstract: Embodiments of the present invention provide a suspension assembly having a dielectric limiter. According to one embodiment, the suspension assembly includes a load beam and a flexure assembly. The flexure assembly includes a metal layer where there are formed a fixing portion fixed to the load beam, main rings, and extending from the fixing portion, sub-rings, and a flexure tongue having moving-side limiter coupling portions defined thereon. Fixing-side limiter coupling portions are defined at the main rings. Dielectric limiters each have a gross length larger than a between-coupling-portions distance between a fixing-side limiter coupling portion and a moving-side limiter coupling portion, and couple the fixing-side limiter coupling portion to the moving-side limiter coupling portion.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: March 6, 2012
    Assignee: Hitachi Global Storage Technologies, Netherlands B.V.
    Inventors: Takuma Muraki, Hiroyasu Tsuchida, Tomoki Hiramatsu, Takeji Sumiya
  • Patent number: 8102627
    Abstract: Embodiments in accordance with the present invention provide a limiter mechanism that permits the gimbal to be designed more freely than before. The head gimbal assembly (HGA) according to one embodiment of the present invention has a limiter mechanism within the silhouette of the head slider. The limiter mechanism has a limiter tab formed in the gimbal tongue and projection of the load beam. Upon receipt of an external impact, the projection locks the limiter tab, thereby limiting the deformation of the gimbal. The limiter tab is formed by fabricating a part within the silhouette of the head slider. This structure allows for freer design of the gimbal and the load beam.
    Type: Grant
    Filed: April 3, 2007
    Date of Patent: January 24, 2012
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Takuma Muraki, Kiroyasu Tsuchida, Kazuyoshi Yoshida, Takahisa Okada
  • Patent number: 8027128
    Abstract: Embodiments of the present invention help to increase yaw stiffness while achieving higher peel stiffness and lower roll stiffness and pitch stiffness in a suspension supporting a head slider. A gimbal according to an aspect of the present invention has a securing point where the gimbal is secured to a load beam in the front and securing points where the gimbal is secured to the load beam in the rear. The gimbal tongue pivots on a dimple contact point. A front ring is secured at the securing point to support the gimbal tongue. The rear ring is secured at the securing points to support the gimbal tongue. The rear ring provides the gimbal tongue with higher yaw stiffness than the front ring. The front ring provides the gimbal tongue with higher peel stiffness than the rear ring.
    Type: Grant
    Filed: April 21, 2009
    Date of Patent: September 27, 2011
    Assignee: Hitachi Global Storage Technologies, Netherlands, B.V.
    Inventors: Takuma Muraki, Hiroyasu Tsuchida
  • Publication number: 20090268347
    Abstract: Embodiments of the present invention help to increase yaw stiffness while achieving higher peel stiffness and lower roll stiffness and pitch stiffness in a suspension supporting a head slider. A gimbal according to an aspect of the present invention has a securing point where the gimbal is secured to a load beam in the front and securing points where the gimbal is secured to the load beam in the rear. The gimbal tongue pivots on a dimple contact point. A front ring is secured at the securing point to support the gimbal tongue. The rear ring is secured at the securing points to support the gimbal tongue. The rear ring provides the gimbal tongue with higher yaw stiffness than the front ring. The front ring provides the gimbal tongue with higher peel stiffness than the rear ring.
    Type: Application
    Filed: April 21, 2009
    Publication date: October 29, 2009
    Applicant: Hitachi Global Storage Technologies Netherlands
    Inventors: Takuma Muraki, Hiroyasu Tsuchida
  • Patent number: 7583475
    Abstract: Embodiments of the invention provide techniques to prevent, when a bonding pad and a lead wiring pad are to be connected using a solder ball, the solder ball from deviating from a centerline and a soldering problem from occurring. In one embodiment, a head suspension assembly includes a solder ball disposed between a lead wiring pad provided for a flexure and a bonding pad provided for a slider. The solder ball is then melted for making a soldered joint between the lead wiring pad and the bonding pad. A through slot is provided at a position near a centerline on a front surface of the lead wiring pad. The solder ball is dropped into the through slot by gravity from the front surface of the lead wiring pad. A contact area in contact with the solder ball is thereby secured on a side of the slider.
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: September 1, 2009
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Yuhsuke Matsumoto, Tatsumi Tsuchiya, Takaaki Murokawa, Yoshio Uematsu, Tatsushi Yoshida, Nobuyuki Hashi, Hiroyasu Tsuchida, Takuma Muraki
  • Publication number: 20080144223
    Abstract: Embodiments of the present invention provide a suspension assembly having a dielectric limiter. According to one embodiment, the suspension assembly includes a load beam and a flexure assembly. The flexure assembly includes a metal layer where there are formed a fixing portion fixed to the load beam, main rings, and extending from the fixing portion, sub-rings, and a flexure tongue having moving-side limiter coupling portions defined thereon. Fixing-side limiter coupling portions are defined at the main rings. Dielectric limiters each have a gross length larger than a between-coupling-portions distance between a fixing-side limiter coupling portion and a moving-side limiter coupling portion, and couple the fixing-side limiter coupling portion to the moving-side limiter coupling portion.
    Type: Application
    Filed: November 29, 2007
    Publication date: June 19, 2008
    Applicant: Hitachi Global Storage Technologies Netherlands B. V.
    Inventors: Takuma Muraki, Hiroyasu Tsuchida, Tomoki Hiramatsu, Takeji Sumiya
  • Publication number: 20070230058
    Abstract: Embodiments in accordance with the present invention provide a limiter mechanism that permits the gimbal to be designed more freely than before. The head gimbal assembly (HGA) according to one embodiment of the present invention has a limiter mechanism within the silhouette of the head slider. The limiter mechanism has a limiter tab formed in the gimbal tongue and projection of the load beam. Upon receipt of an external impact, the projection locks the limiter tab, thereby limiting the deformation of the gimbal. The limiter tab is formed by fabricating a part within the silhouette of the head slider. This structure allows for freer design of the gimbal and the load beam.
    Type: Application
    Filed: April 3, 2007
    Publication date: October 4, 2007
    Applicant: Hitachi Global Storage Technologies B.V.
    Inventors: Takuma Muraki, Hiroyasu Tsuchida, Kazuyoshi Yoshida, Takahisa Okada
  • Patent number: 6954338
    Abstract: A disk drive unit such as a hard disk drive is provided in which the efficiency of manufacturing processes, cost reductions, and space savings are achieved. The hard disk drive has a stopper that is arranged between a set of coil holding arms of an actuator. The stopper regulates inward and outward turning of the actuator. A magnet is embedded in the stopper and holds a magnetic head of the actuator on a ramp.
    Type: Grant
    Filed: November 5, 2002
    Date of Patent: October 11, 2005
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Takuma Muraki, Kohichi Takeuchi, Shingo Tsuda
  • Publication number: 20050199680
    Abstract: Embodiments of the invention provide techniques to prevent, when a bonding pad and a lead wiring pad are to be connected using a solder ball, the solder ball from deviating from a centerline and a soldering problem from occurring. In one embodiment, a head suspension assembly includes a solder ball disposed between a lead wiring pad provided for a flexure and a bonding pad provided for a slider. The solder ball is then melted for making a soldered joint between the lead wiring pad and the bonding pad. A through slot is provided at a position near a centerline on a front surface of the lead wiring pad. The solder ball is dropped into the through slot by gravity from the front surface of the lead wiring pad. A contact area in contact with the solder ball is thereby secured on a side of the slider.
    Type: Application
    Filed: February 25, 2005
    Publication date: September 15, 2005
    Applicant: Hitachi Global Storage Technologies Netherlands, B.V.
    Inventors: Yuhsuke Matsumoto, Tatsumi Tsuchiya, Takaaki Murokawa, Yoshio Uematsu, Tatsushi Yoshida, Nobuyuki Hashi, Hiroyasu Tsuchida, Takuma Muraki
  • Publication number: 20030090841
    Abstract: A disk drive unit such as a hard disk drive is provided in which the efficiency of manufacturing processes, cost reductions, and space savings are achieved. The hard disk drive has a stopper that is arranged between a set of coil holding arms of an actuator. The stopper regulates inward and outward turning of the actuator. A magnet is embedded in the stopper and holds a magnetic head of the actuator on a ramp.
    Type: Application
    Filed: November 5, 2002
    Publication date: May 15, 2003
    Applicant: International Business Machines Corporation
    Inventors: Takuma Muraki, Kohichi Takeuchi, Shingo Tsuda