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Inventor

Junichi Koyama

Inventor
Hitachi, JP

Overview

31→
Patents
1990–2021
Patent span
Physics
Primary field (CPC G)

Patents· 31 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G21Cprimary
G21CNuclear reactors24%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution24%
B21DWorking or processing of sheet metal or metal tubes, rods or profiles without essentially removing material13%
A61BDiagnosis6%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
A61MDevices for introducing media into, or onto, the body3%
H04LTransmission of digital information, e.g. telegraphic communication3%
H04QSelecting3%
H04WWireless communication networks3%
A61FFilters implantable into blood vessels2%
PatentTitleYear
11,065,008Embolic coil202111,040,404Cutting insert and boring tool20219,789,525'Device and method for detecting final depth of punch in machine tool'20179,610,624'Method for bending metal sheet and device for regulating residual stress'20177,518,984'IP-PBX, IP-PBX system, IP terminal control program'20097,448,377'Intubation assistance instrument and intubation assistance apparatus provided with the intubation assistance instrument'20087,156,091'Oral airway and airway management assistive device provided with the oral airway'20077,040,129'Sheet working method, sheet working system, and various devices related to such system'20067,007,530'Bending method and bending device'20066,941,784'Bending method and device therefor'20056,832,526'Bending method and single elongation value specifying device of bending apparatus'20046,796,155'Sheet thickness detecting method and device therefor in bending machine, reference inter-blade distance detecting method and device therefor, and bending method and bending device'20046,745,030'Mobile communication system and mobile communication method'20046,735,267'Fuel assembly'20046,516,043'Fuel assembly and reactor core and fuel spacer and channel box'20036,504,889'Method of operating reactor'20036,491,725'Keyhole button'20026,335,956'Fuel assembly'20026,141,396'Initial loading core'20006,061,416'Fuel assembly'20006,005,905'Initial core'19995,857,366'Method of bending workpiece to target bending angle accurately and press brake for use in the same method'19995,642,403'Portable telephone set tracking connection system in mobile communication network'19975,631,939'Initial core of nuclear power plant'19975,519,739'Boiling water type thermal neutron reactor and its operating method'19965,422,922'Fuel assembly and reactor core'19955,207,979'Nuclear fuel assemblies and reactor cores including them'19935,176,877'Nuclear fuel assembly and nuclear reactor core containing said assembly'19935,093,070'Core loading strategy'19925,008,070'Fuel assembly'19914,914,678'Reactor core in a nuclear reactor and initial core in a nuclear reactor'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–2004Patents assigned to HITACHI LTD (15)· patent assignee history
1990–2003Based in Hitachi, JP· patent location history
1997–2009Patents assigned to NEC CORP (3)· patent assignee history
1997–2009Based in Tokyo, JP· patent location history
1999–2017Patents assigned to AMADA CO LTD (8)· patent assignee history
1999–2017Based in Kanagawa, JP· patent location history
2002Patents assigned to ASAHI OPTICAL CO LTD (1)· patent assignee history
2002–2007Based in Nagano, JP· patent location history
2021Patents assigned to BIG DAISHOWA SEIKI CO LTD (1)· patent assignee history
2021Based in Matsumoto, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD151990–2004
AMADA CO LTD81999–2017
NEC CORP31997–2009
ASAHI OPTICAL CO LTD12002
BIG DAISHOWA SEIKI CO LTD12021
Locations
LocationPatentsSpan
Hitachi, JP141990–2003
Kanagawa, JP81999–2017
Tokyo, JP31997–2009
Nagano, JP22002–2007
Matsumoto, JP12021