Inventor
Hisanori Okamura
Inventor
Tokai, JP
Overview
Patents· 38 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B23Kprimary
B23KSoldering or unsoldering29%
Y10TTechnical subjects covered by former us classification19%
B23QDetails, components, or accessories for machine tools, e.g. arrangements for copying or controlling13%
H05BElectric heating13%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h103%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution3%
F01DNon-positive displacement machines or engines, e.g. steam turbines2%
G21CNuclear reactors2%
H05KPrinted circuits2%
H10NElectric solid-state devices not otherwise provided for2%
PatentTitleYear
7,480,992'Cooling plate and manufacturing method thereof, and sputtering target and manufacturing method thereof'20097,097,091'Friction stir welding method and component part welded by the method'20067,036,707'Friction stir welding method, frame members used therein, and product formed thereby'20066,936,332'Extruded frame member for use in friction stir welding'20056,866,181'Friction stir welding method'20056,783,055'Friction stir welding method and rotary tool'20046,739,495'Friction stir welding method and component part welded by the method'20046,729,526'Friction stir welding apparatus and method and processing apparatus and method'20046,722,286'Structure and railway car'20046,716,538'Structural body formed by friction stir welding'20046,715,665'Friction stir welding method and apparatus, and welded structure'20046,640,515'Frame member used in friction stir welding'20036,619,534'Friction stir welding method using members which overlap and have protrusion at the weld location prior to the welding'20036,613,447'Structural body formed by friction stir welding and having protrusion at the weld provided prior to the welding'20036,607,837'Structural body formed by friction stir welding method'20036,595,403'Friction stir welding method'20036,594,149'Liquid cooled circuit device'20036,588,647'Liquid cooled circuit device and a manufacturing method thereof'20036,585,148'Welding processes for iron-base ultra fine grained materials and structural components manufactured by the processes'20036,585,443'Structural body formed by friction stir welding two members, one of which has a protruding portion'20036,555,779'Underwater processing device and underwater processing method'20036,540,128'Friction stir welding method and apparatus, and welded structure'20036,419,144'Method of forming structural body using friction stir welding, and structural body formed'20026,382,498'Friction stir welding method including positioning of rotary tool, and structural body formed thereby'20026,378,754'Friction stir welding method including removal of protruding portion, and structural body formed thereby'20026,305,866'Structure joined by friction stir welding'20016,299,050'Friction stir welding apparatus and method'20016,237,829'Friction stir welding apparatus'20016,146,094'Motor-driven blower and method of manufacturing impeller for motor-driven blower'20006,050,474'Friction stir welding method, frame members used therein, and product formed thereby'20005,654,992'Method of repairing structural materials of nuclear reactor internals and apparatus therefor'19975,621,243'Semiconductor device having thermal stress resistance structure'19975,325,012'Bonded type piezoelectric apparatus, method for manufacturing the same and bonded type piezoelectric element'19945,051,397'Joined body of high-temperature oxide superconductor and method of joining oxide superconductors'19914,690,793'Nuclear fusion reactor'19874,636,434'Ceramic composite article'19873,999,030'Welding method for dissimilar metals'19763,975,612'Welding method for dissimilar metals'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–2009Patents assigned to HITACHI LTD (37)· patent assignee history
1976Based in Hitachi, JP· patent location history
1987–2004Based in Ibaraki, JP· patent location history
1987Based in Toukai, JP· patent location history
1994Patents assigned to HITACHI ENG SERVICE (1)· patent assignee history
1994Patents assigned to HITACHI MATERIAL ENGINEERING L (1)· patent assignee history
1997Patents assigned to HITACHI HARAMACHI ELECTRONICS (1)· patent assignee history
1997–2009Based in Tokai, JP· patent location history
1997Based in Yawara-mura, JP· patent location history
2009Patents assigned to HITACHI CABLE (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 37 | 1976–2009 |
| HITACHI CABLE | 1 | 2009 |
| HITACHI ENG SERVICE | 1 | 1994 |
| HITACHI HARAMACHI ELECTRONICS | 1 | 1997 |
| HITACHI MATERIAL ENGINEERING L | 1 | 1994 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokai, JP | 28 | 1997–2009 |
| Ibaraki, JP | 6 | 1987–2004 |
| Hitachi, JP | 2 | 1976 |
| Yawara-mura, JP | 1 | 1997 |
| Toukai, JP | 1 | 1987 |