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Inventor

Ken Yamashita

Inventor
Fujisawa, JP

Overview

28→
Patents
1991–2021
Patent span
Performing operations
Primary field (CPC B)

Patents· 28 as inventor

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

B23Kprimary
B23KSoldering or unsoldering19%
C22CAlloys10%
H04NPictorial communication, e.g. television7%
B41JTypewriters5%
G09GArrangements or circuits for control of indicating devices using static means to present variable information5%
G11BInformation storage based on relative movement between record carrier and transducer5%
H10HInorganic light-emitting semiconductor devices having potential barriers5%
Y10TTechnical subjects covered by former us classification5%
C21DModifying the physical structure of ferrous metals3%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein3%
PatentTitleYear
10,919,928Oligonucleotide production method, and nucleoside, nucleotide, or oligonucleotide20219,993,889Oil composition for electrical discharge machining20189,879,335'Weld metal and welded structure'20189,505,087'Weld metal having excellent temper embrittlement resistance'20169,289,859'Weld metal with excellent creep characteristics'20168,992,698'Welding metal having excellent low-temperature toughness and drop-weight characteristics'20158,932,415'Welding metal having excellent low-temperature toughness and drop-weight characteristics'20158,649,653'Reproduction device, reproduction method, and program'20148,574,381'Weld metal and welded structure having weld joints using the same'20138,433,929'Data management device, stored data management method and computer program'20138,335,425'Playback apparatus, playback method, and program for performing stereoscopic playback'20128,306,387'Play back apparatus, playback method and program for playing back 3D video'20128,301,013'Reproduction device, reproduction method, and program for stereoscopic reproduction'20128,101,029'Weld metal of high-strength Cr-Mo steel'20127,921,373'Display screen management apparatus'20117,017,163'Method, server, and client used in client-server distributed system'20066,940,042'Flux-cored wire for gas-shielded arc welding'20056,856,451'Optical communication system'20056,845,186'Optical circuit with harmonic generator'20056,531,826'Self-scanning light-emitting device'20036,479,796'Flux-cored wire for gas-shielded arc welding of heat resisting steel'20025,854,463'Flux cored wire for stainless steel'19985,814,841'Self-scanning light-emitting array'19985,451,977'Self-scanning light-emitting array and a driving method of the array'19955,279,868'Method of preparing ultrafine particle dispersion material'19945,177,405'Self-scanning, light-emitting device'19935,124,529'Flux-cored wire for welding stainless steel'19925,016,981'Mask'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–2005Patents assigned to NIPPON SHEET GLASS CO LTD (8)· patent assignee history
1991–2005Based in Osaka, JP· patent location history
1992–2018Patents assigned to KOBE STEEL LTD (11)· patent assignee history
1993–1995Based in Tsuchiura, JP· patent location history
1998–2018Based in Fujisawa, JP· patent location history
2011–2014Patents assigned to PANASONIC CORP (6)· patent assignee history
2011–2014Based in Nara, JP· patent location history
2012–2016Patents assigned to YAMASHITA KEN (10)· patent assignee history
2013–2016Patents assigned to NAKO HIDENORI (4)· patent assignee history
2021Based in Kawasaki, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
KOBE STEEL LTD111992–2018
YAMASHITA KENself102012–2016
NIPPON SHEET GLASS CO LTD81991–2005
PANASONIC CORP62011–2014
NAKO HIDENORI42013–2016
Locations
LocationPatentsSpan
Fujisawa, JP101998–2018
Nara, JP62011–2014
Osaka, JP51991–2005
Tsuchiura, JP21993–1995
Kawasaki, JP12021