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).
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Patent number: 8149586Abstract: 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: GrantFiled: January 16, 2009Date of Patent: April 3, 2012Assignee: International Business Machines CorporationInventors: Michael Allen Curnalia, Kenji Hidaka, Michihiro Okamoto, Yasuhiro Yamamoto, Takeshi Wagatsuma
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Patent number: 7843683Abstract: 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: GrantFiled: February 26, 2009Date of Patent: November 30, 2010Assignee: International Business Machines CorporationInventors: Edward S. Suffern, Takeshi Wagatsuma, Kenji Hidaka, Michihiro Okamoto
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Publication number: 20100214733Abstract: 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: ApplicationFiled: February 26, 2009Publication date: August 26, 2010Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Edward S. Suffern, Takeshi Wagatsuma, Kenji Hidaka, Michihiro Okamoto
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Patent number: 7782621Abstract: 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: GrantFiled: November 3, 2008Date of Patent: August 24, 2010Assignee: International Business Machines CorporationInventors: Takuji Matsushiba, Aya Minami, Yohichi Miwa, Taichiroh Nomura, Kenji Tsuboi, Takeshi Wagatsuma, Masatake Yamamoto
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Publication number: 20100182754Abstract: 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: ApplicationFiled: January 16, 2009Publication date: July 22, 2010Applicant: International Business Machines CorporationInventors: Michael Allen Curnalia, Kenji Hidaka, Michihiro Okamoto, Yasuhiro Yamamoto, Takeshi Wagatsuma
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Patent number: 7684208Abstract: 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: GrantFiled: March 29, 2007Date of Patent: March 23, 2010Assignee: International Business Machines CorporationInventors: Michihiro Okamoto, Edward Stanley Suffern, Takeshi Wagatsuma
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Publication number: 20090116194Abstract: 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: ApplicationFiled: November 3, 2008Publication date: May 7, 2009Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Takuji Matsushiba, Aya Minami, Yohichi Miwa, Taichiroh Nomura, Kenji Tsuboi, Takeshi Wagatsuma, Masatake Yamamoto
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Patent number: 7499271Abstract: 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: GrantFiled: March 20, 2006Date of Patent: March 3, 2009Assignee: International Business Machines CorporationInventors: Takeshi Wagatsuma, Michihiro Okamoto, Kenji Hidaka
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Publication number: 20080239689Abstract: 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: ApplicationFiled: March 29, 2007Publication date: October 2, 2008Inventors: Michihiro Okamoto, Edward Stanley Suffern, Takeshi Wagatsuma
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Publication number: 20080239650Abstract: 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: ApplicationFiled: March 28, 2007Publication date: October 2, 2008Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Yoshirio Fujie, Kenji Hidaka, Koji Nakase, Michihiro Okamoto, Kenneth Robert Schneebeli, Takeshi Wagatsuma
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Publication number: 20080239648Abstract: 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: ApplicationFiled: April 28, 2008Publication date: October 2, 2008Inventors: Michihiro Okamoto, Edward S. Suffern, Takeshi Wagatsuma
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Publication number: 20070217143Abstract: 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: ApplicationFiled: December 19, 2006Publication date: September 20, 2007Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Takeshi Wagatsuma, Michihiro Okamoto, Kenji Hidaka
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Publication number: 20070217142Abstract: 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: ApplicationFiled: March 20, 2006Publication date: September 20, 2007Inventors: Takeshi Wagatsuma, Michihiro Okamoto, Kenji Hidaka