Patents by Inventor Takeshi Wagatsuma

Takeshi Wagatsuma 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: 8149586
    Abstract: A tray keying mechanism is mounted on a backplane inside a modular chassis and has a protrusion that stands out like a post for each of several equipment bays. A modular tray can be inserted into each of the equipment bays, but it will not be allowed to be fully inserted and to engage the electrical connectors on the backplane if the corresponding post meets an obstruction on the rear apron of the tray. If the particular tray is the correct type, and is not upside down, the post will encounter no obstructions during the insertion of the tray, and the electrical connectors will be allowed to engage. In one embodiment, the keying mechanism comprises a bracket of molded plastic that fits all around the several connectors on the backplane, and could be patterned to fit an already existing and in-service backplane and chassis.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: April 3, 2012
    Assignee: International Business Machines Corporation
    Inventors: Michael Allen Curnalia, Kenji Hidaka, Michihiro Okamoto, Yasuhiro Yamamoto, Takeshi Wagatsuma
  • Patent number: 7843683
    Abstract: Airflow bypass dampers made from a resilient material and systems including the resilient dampers. The dampers are secured in a chassis and extend into a deployed position to obstruct airflow through a component bay of a chassis in the absence of a component, such as a sever blade, within the selected bay. The airflow bypass damper bends into a retracted position in response to installing a component into the bay. It returns to its original shape and position when the component is removed. An air moving device moves air through a component installed in the chassis. A plurality of the resilient airflow bypass dampers may be secured in a plurality of bays of a chassis, each resilient damper moving independently of the others. The resilient material bends without permanent deformation. For example, the resilient material may include, without limitation, natural polymers, synthetic polymers and metals. A preferred damper has a curved cross-sectional shape.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: November 30, 2010
    Assignee: International Business Machines Corporation
    Inventors: Edward S. Suffern, Takeshi Wagatsuma, Kenji Hidaka, Michihiro Okamoto
  • Publication number: 20100214733
    Abstract: Airflow bypass dampers made from a resilient material and systems including the resilient dampers. The dampers are secured in a chassis and extend into a deployed position to obstruct airflow through a component bay of a chassis in the absence of a component, such as a sever blade, within the selected bay. The airflow bypass damper bends into a retracted position in response to installing a component into the bay. It returns to its original shape and position when the component is removed. An air moving device moves air through a component installed in the chassis. A plurality of the resilient airflow bypass dampers may be secured in a plurality of bays of a chassis, each resilient damper moving independently of the others. The resilient material bends without permanent deformation. For example, the resilient material may include, without limitation, natural polymers, synthetic polymers and metals. A preferred damper has a curved cross-sectional shape.
    Type: Application
    Filed: February 26, 2009
    Publication date: August 26, 2010
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Edward S. Suffern, Takeshi Wagatsuma, Kenji Hidaka, Michihiro Okamoto
  • Patent number: 7782621
    Abstract: A circuit module includes: a thermally conductive board forming a part of a housing; a circuit board disposed above the thermally conductive board; a semiconductor chip connected to a plurality of electrode pads on a upper surface of the circuit board through solder; a heat sink connected to a upper surface of the semiconductor chip; a thermally conductive member thermally connecting the thermally conductive board to the semiconductor chip; and a plurality of fasteners passing through the thickness of the circuit board in an area surrounding the semiconductor chip to attach the heat sink to the thermally conductive board.
    Type: Grant
    Filed: November 3, 2008
    Date of Patent: August 24, 2010
    Assignee: International Business Machines Corporation
    Inventors: Takuji Matsushiba, Aya Minami, Yohichi Miwa, Taichiroh Nomura, Kenji Tsuboi, Takeshi Wagatsuma, Masatake Yamamoto
  • Publication number: 20100182754
    Abstract: A tray keying mechanism is mounted on a backplane inside a modular chassis and has a protrusion that stands out like a post for each of several equipment bays. A modular tray can be inserted into each of the equipment bays, but it will not be allowed to be fully inserted and to engage the electrical connectors on the backplane if the corresponding post meets an obstruction on the rear apron of the tray. If the particular tray is the correct type, and is not upside down, the post will encounter no obstructions during the insertion of the tray, and the electrical connectors will be allowed to engage. In one embodiment, the keying mechanism comprises a bracket of molded plastic that fits all around the several connectors on the backplane, and could be patterned to fit an already existing and in-service backplane and chassis.
    Type: Application
    Filed: January 16, 2009
    Publication date: July 22, 2010
    Applicant: International Business Machines Corporation
    Inventors: Michael Allen Curnalia, Kenji Hidaka, Michihiro Okamoto, Yasuhiro Yamamoto, Takeshi Wagatsuma
  • Patent number: 7684208
    Abstract: A system chassis includes multiple chassis bays configured for receiving either of a single, conventional server blade or an adapter blade. The adapter blade can selectively secure a plurality of compact blades, such as a blade PC. The adapter blade includes a blade latch for selectively releasing the adapter blade from the chassis bay, wherein the presence of a compact blade enclosure within any of the plurality of adapter bays of the adapter blade prevents the latch from being operable to release the adapter blade. The compact blade preferably includes a latch disposed along an upper or lower edge of the blade for selectively releasing the compact blade enclosure from the adapter bay. The adapter blade preferably also includes an interposer disposed for electronically communicating each compact blade with a server interface a separate node upon securing a compact blade within any of the adapter bays.
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: March 23, 2010
    Assignee: International Business Machines Corporation
    Inventors: Michihiro Okamoto, Edward Stanley Suffern, Takeshi Wagatsuma
  • Publication number: 20090116194
    Abstract: A circuit module includes: a thermally conductive board forming a part of a housing; a circuit board disposed above the thermally conductive board; a semiconductor chip connected to a plurality of electrode pads on a upper surface of the circuit board through solder; a heat sink connected to a upper surface of the semiconductor chip; a thermally conductive member thermally connecting the thermally conductive board to the semiconductor chip; and a plurality of fasteners passing through the thickness of the circuit board in an area surrounding the semiconductor chip to attach the heat sink to the thermally conductive board.
    Type: Application
    Filed: November 3, 2008
    Publication date: May 7, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Takuji Matsushiba, Aya Minami, Yohichi Miwa, Taichiroh Nomura, Kenji Tsuboi, Takeshi Wagatsuma, Masatake Yamamoto
  • Patent number: 7499271
    Abstract: A hard disk enclosure blade includes an enclosure insertable into a rack, a number of slots, a lever, and a flap. Each slot can receive a tray holding hard disk drives. The lever allows the enclosure to be pushed into and pulled from the rack. The lever has an open position in which the enclosure is removable from the rack, and a closed position in which the enclosure is not removable. The flap has a first flap position in which the flap is disposed across the slots and in which the lever is movable from its closed to its open position, and a second flap position in which the lever is not movable from the closed to the open position. Where the slots are all empty, the flap reverts to the first flap position. Insertion of a tray into a slot forces the flap to the second flap position.
    Type: Grant
    Filed: March 20, 2006
    Date of Patent: March 3, 2009
    Assignee: International Business Machines Corporation
    Inventors: Takeshi Wagatsuma, Michihiro Okamoto, Kenji Hidaka
  • Publication number: 20080239689
    Abstract: A system chassis includes multiple chassis bays configured for receiving either of a single, conventional server blade or an adapter blade. The adapter blade can selectively secure a plurality of compact blades, such as a blade PC. The adapter blade includes a blade latch for selectively releasing the adapter blade from the chassis bay, wherein the presence of a compact blade enclosure within any of the plurality of adapter bays of the adapter blade prevents the latch from being operable to release the adapter blade. The compact blade preferably includes a latch disposed along an upper or lower edge of the blade for selectively releasing the compact blade enclosure from the adapter bay. The adapter blade preferably also includes an interposer disposed for electronically communicating each compact blade with a server interface a separate node upon securing a compact blade within any of the adapter bays.
    Type: Application
    Filed: March 29, 2007
    Publication date: October 2, 2008
    Inventors: Michihiro Okamoto, Edward Stanley Suffern, Takeshi Wagatsuma
  • Publication number: 20080239650
    Abstract: Provided is an apparatus comprising a tray coupled to leaf spring mounts with multiple guide slots, the multiple guide slots adapted to receive multiple guide pins coupled to an electronic component, the leaf spring mounts adapted to hold the electronic component in a pre-determined position with spring force.
    Type: Application
    Filed: March 28, 2007
    Publication date: October 2, 2008
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Yoshirio Fujie, Kenji Hidaka, Koji Nakase, Michihiro Okamoto, Kenneth Robert Schneebeli, Takeshi Wagatsuma
  • Publication number: 20080239648
    Abstract: A design structure embodied in a machine readable storage medium for at least one of designing, manufacturing, and testing a system chassis is provided. The system chassis includes multiple chassis bays configured for receiving either a single, conventional server blade or an adapter blade. The adapter blade can selectively secure a plurality of compact blades. The adapter blade includes a blade latch for selectively releasing the adapter blade from the chassis bay, wherein the presence of a compact blade enclosure within any of the plurality of adapter bays of the adapter blade prevents the latch from being operable to release the adapter blade. The compact blade includes a latch disposed along an upper or lower edge of the blade for selectively releasing the compact blade enclosure from the adapter bay.
    Type: Application
    Filed: April 28, 2008
    Publication date: October 2, 2008
    Inventors: Michihiro Okamoto, Edward S. Suffern, Takeshi Wagatsuma
  • Publication number: 20070217143
    Abstract: A hard disk enclosure blade includes an enclosure insertable into a rack, a number of slots, a lever, and a flap. Each slot can receive a tray holding hard disk drives. The lever allows the enclosure to be pushed into and pulled from the rack. The lever has an open position in which the enclosure is removable from the rack, and a closed position in which the enclosure is not removable. The flap has a first flap position in which the flap is disposed across the slots and in which the lever is movable from its closed to its open position, and a second flap position in which the lever is not movable from the closed to the open position. Where the slots are all empty, the flap reverts to the first flap position. Insertion of a tray into a slot forces the flap to the second flap position.
    Type: Application
    Filed: December 19, 2006
    Publication date: September 20, 2007
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Takeshi Wagatsuma, Michihiro Okamoto, Kenji Hidaka
  • Publication number: 20070217142
    Abstract: A hard disk enclosure blade includes an enclosure insertable into a rack, a number of slots, a lever, and a flap. Each slot can receive a tray holding hard disk drives. The lever allows the enclosure to be pushed into and pulled from the rack. The lever has an open position in which the enclosure is removable from the rack, and a closed position in which the enclosure is not removable. The flap has a first flap position in which the flap is disposed across the slots and in which the lever is movable from its closed to its open position, and a second flap position in which the lever is not movable from the closed to the open position. Where the slots are all empty, the flap reverts to the first flap position. Insertion of a tray into a slot forces the flap to the second flap position.
    Type: Application
    Filed: March 20, 2006
    Publication date: September 20, 2007
    Inventors: Takeshi Wagatsuma, Michihiro Okamoto, Kenji Hidaka