Inventor

Yutaka Oka

Inventor
Kanagawa, JP

Overview

22→
Patents
1979–2021
Patent span
Chemistry
Primary field (CPC C)

Patents· 22 as inventor

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

G03Cprimary
G03CPhotosensitive materials for photographic purposes13%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds8%
C08LCompositions of macromolecular compounds8%
C22CAlloys6%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices6%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%
Y10TTechnical subjects covered by former us classification6%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients4%
G03GElectrography4%
G11CStatic stores4%
PatentTitleYear
11,109,459Drive circuit and light emitting device202110,333,038LED module and method for manufacturing LED module20199,683,084'Curable silicone composition, cured product thereof, and optical semiconductor device'20177,782,696'Semiconductor storage device'20107,462,444'Image forming method for the photothermographic material'20087,235,352'Photothermographic material'20077,175,721'Method for preparing Cr-Ti-V type hydrogen occlusion alloy'20077,105,282'Image forming method using photothermographic material'20067,075,837'Redundancy relieving circuit'20066,569,536'Thermoconductive liquid silicone rubber composition for fixing rolls and a fluororesin coated fixing roll'20036,420,038'Liquid silicone rubber composition for fixing rolls and fluorocarbon resin-covered fixing roll'20026,416,924'Silver halide photographic material and method for processing the same'20026,297,291'Liquid silicone rubber composition of low specific gravity'20015,232,520'High-strength martensitic stainless steel having superior fatigue properties in corrosive and erosive environment and method of producing the same'19934,963,460'Light-sensitive material containing silver halide, reducing agent and polymerizable compound with silver halide outside and inside of microcapsules'19904,879,200'Light-sensitive material containing silver halide, reducing agent, polymerizable compound, and a quaternary ammonium development accelerator'19894,830,947'Light-sensitive material containing silver halide, reducing agent and polymerizable compound'19894,744,824'Method of producing metallic materials for the components of nuclear reactors'19884,725,533'Silver halide photographic material for wash-off relief image'19884,510,229'Lithographic photosensitive material'19854,289,523'Work tables in apparatus for blowing hollow glass articles'1981T0978001'Silver halide photographic photosensitive material'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1985–2006Patents assigned to FUJI PHOTO FILM CO LTD (7)· patent assignee history
1985–2008Based in Kanagawa, JP· patent location history
1988–1993Patents assigned to KAWASAKI STEEL CO (2)· patent assignee history
1988–2003Based in Chiba, JP· patent location history
2001–2003Patents assigned to DOW CORNING TORAY SILICONE (3)· patent assignee history
2006–2010Based in Tokyo, JP· patent location history
2007–2008Patents assigned to FUJIFILM CORP (2)· patent assignee history
2019Based in Kisarazu, JP· patent location history
2021Patents assigned to ABE SEIYA (1)· patent assignee history
2021Based in Miyagi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
FUJI PHOTO FILM CO LTD71985–2006
DOW CORNING TORAY SILICONE32001–2003
FUJIFILM CORP22007–2008
KAWASAKI STEEL CO21988–1993
ABE SEIYA12021
Locations
LocationPatentsSpan
Kanagawa, JP91985–2008
Chiba, JP51988–2003
Tokyo, JP22006–2010
Miyagi, JP12021
Kisarazu, JP12019