LexDanaLexDanabeta
Inventor

Yasuo Okamoto

Inventor
Shizuoka, JP

Overview

41→
Patents
1977–2021
Patent span
Physics
Primary field (CPC G)

Patents· 41 as inventor

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

G03Fprimary
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices16%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
F01LCyclically operating valves for machines or engines7%
B62JCycle saddles or seats4%
B62KCycles3%
C22CAlloys3%
C22FChanging the physical structure of non-ferrous metals and non-ferrous alloys3%
G09GArrangements or circuits for control of indicating devices using static means to present variable information3%
B21JForging2%
PatentTitleYear
10,984,757Machine learning method, machine learning system, and display system202110,937,387Information terminal202110,923,059Operation method of electronic device202110,851,680Internal combustion engine and vehicle202010,641,141Valve gear for engine202010,352,201Valve mechanism of engine201910,215,063Valve gear for engine and method of manufacturing rocker arms201910,167,744Valve gear for engine20199,441,521'Method for removing foreign matter from a selective reduction catalyst system'20169,272,327'Method for producing shaped article of aluminum alloy, shaped aluminum alloy article and production system'20169,188,042'Urea quality diagnosis system'20158,828,157'Method for producing shaped article of aluminum alloy, shaped aluminum alloy article and production system'20148,256,939'Straddle-type vehicle'20128,157,934'Wear-resistant aluminum alloy material with excellent workability and method for producing the same'20127,731,238'Straddle-type vehicle'20107,690,463'Straddle-type vehicle'20107,434,555'V type internal combustion engine'20087,060,370'Organic EL element and organic EL display'20066,880,398'Fuel level detection device for a fuel tank'20056,846,615'Method for making lithographic printing plate'20056,727,044'Method for producing lithographic printing plate, lithographic printing original plate for laser scan exposure, and photopolymerizable composition'20046,638,687'Method for preparing lithographic printing plate'20036,601,572'Joint structure for an blow-by gas passage'20036,153,660'Photopolymerizable composition'20006,140,384'Photopolymerizable composition containing a sensitizing dye with cyano or substituted carbonyl groups'20005,939,465'Photopolymerizable composition'19995,801,212'Photopolymerizable composition containing a sensitizing dye and a titanocene compound'19985,776,996'Photopolymerizable composition'19985,772,970'Reaction column'19985,731,363'Photopolymerizable composition containing sensitizing dye and titanocene compound'19985,698,372'Photosensitive lithographic printing plate'19975,609,992'Photopolymerizable composition'19975,385,807'Photopolymerizable composition'19955,168,032'Photopolymerizable composition initiated by a combination of boron compound, dye, and heterocyclic compound'19925,049,481'Sensitizers for photopolymerizable compositions'19914,992,026'Gas turbine blade'19914,971,891'Photopolymerizable compositions containing organoboron compounds and pyrylium or thiopyrylium dyes'19904,950,582'Light-sensitive composition'19904,709,062'Glycidyl compound'19874,269,227'Valve apparatus'19814,046,650'Carbon block for cathodes of aluminum'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–2006Patents assigned to FUJI PHOTO FILM CO LTD (17)· patent assignee history
1990–2020Based in Shizuoka, JP· patent location history
1998–2021Based in Kanagawa, JP· patent location history
2003–2020Patents assigned to YAMAHA MOTOR CO LTD (11)· patent assignee history
2003–2008Based in Iwata, JP· patent location history
2012–2016Patents assigned to OKAMOTO YASUO (5)· patent assignee history
2012–2016Patents assigned to SHOWA DENKO KK (3)· patent assignee history
2012–2014Based in Kitakata, JP· patent location history
2015–2016Based in Fujisawa, JP· patent location history
2021Patents assigned to SEMICONDUCTOR ENERGY LAB (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
FUJI PHOTO FILM CO LTD171990–2006
YAMAHA MOTOR CO LTD112003–2020
OKAMOTO YASUOself52012–2016
SEMICONDUCTOR ENERGY LAB32021
SHOWA DENKO KK32012–2016
Locations
LocationPatentsSpan
Shizuoka, JP251990–2020
Kanagawa, JP31998–2021
Fujisawa, JP22015–2016
Kitakata, JP22012–2014
Iwata, JP22003–2008