LexDanaLexDanabeta
Inventor

Yoshio Fujiwara

Inventor
Tochigi, JP

Overview

48→
Patents
1976–2021
Patent span
General tagging of new technological developments
Primary field (CPC Y)

Patents· 48 as inventor

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

B41Mprimary
B41MPrinting, duplicating, marking, or copying processes21%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests21%
Y10TTechnical subjects covered by former us classification20%
C09DCoating compositions, e.g. paints, varnishes or lacquers3%
C09JAdhesives3%
H01BCables3%
C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments2%
C23CCoating metallic material2%
F04DNon-positive-displacement pumps2%
B01DSeparation2%
PatentTitleYear
D0918753Smoke detector20218,025,970'Fishing line and method for production thereof'20116,953,859'Production process for 5-alkyl-oxazolidin-2,4-dione'20056,878,210'Surface-treating holder having tubular structure and method using the same'20056,821,560'Surface-treating support member and method using the same'20046,344,567'Process for producing ascorbic acid-2-phosphoric ester salts'20026,281,270'Printing paper, dye-receiving layer forming composition for preparing it, ink composition suitable for it, and image forming method using them'20016,280,792'Surface-treating process using support member having plate-like elements'20016,177,501'Printing paper, dye-receiving layer forming composition for preparing it, ink composition suitable for it, and image forming method using them'20016,063,836'Printing paper, dye-receiving layer forming composition for preparing it, ink composition suitable for it, and image forming method using them'20005,883,232'Hydrophobic cationic dyes and thermal transfer ink ribbons using the same'19995,834,600'Hydrophobic cationic dyes and thermal transfer ink ribbons using the same'19985,688,737'Thermal transfer recording medium'19975,665,676'Printing sheet and manufacturing method therefor'19975,608,474'Image displaying device'19975,589,435'Sheet capable of releasing a thermal transfer image-receiving layer, a method for transferring a thermal transfer image-receiving layer from the sheet and a method for forming images'19965,560,996'Printing paper, dye-receiving layer forming composition for preparing it, ink composition suitable for it, and image forming method using them'19965,547,739'Recording medium for heat sensitive transfer printing'19965,543,453'Composition for fixing water-color ink, cover film for thermal transfer image using composition for fixing water-color ink, and thermal transfer image recorded medium'19965,470,817'Printing sheet and manufacturing method therefor'19955,470,818'Printing sheet comprising a dye receiving layer made of an isocyanate group-containing polymer'19955,462,910'Composition for fixing water-color ink, cover film for thermal transfer image using composition for fixing water color-ink, and thermal transfer image recorded medium'19955,446,012'Sheet capable of releasing a thermal transfer image-receiving layer, a method for transferring a thermal trnasfer image-receiving layer from the sheet and a method for forming images'19955,402,271'Video tape recorder monitors recording errors and rerecords video signals when errors are detected'19955,393,725'Thermal transfer system, printing paper and ink ribbon for the thermal transfer system'19955,387,518'Alkaline protease having stability in solution with anionic surfactant, method for producing the same, use thereof and microorganism producing the same'19955,362,702'Dye receiving paper for thermal transfer printing of video signals'19945,352,362'Brine recycling method and apparatus therefor'19945,343,334'Video tape that records, plays back, and rerecords video signals to overcome dropouts'19945,292,905'Cyan dyes'19945,278,130'Printing sheet for video images'19945,277,992'Thermal transfer ink sheet'19945,238,727'Heat transfer ink ribbon'19934,977,136'Cover film for hard copy printing paper'19904,735,847'Electrically conductive adhesive sheet, circuit board and electrical connection structure using the same'19884,721,703'Sublimation transfer system color hard copy printing paper'19884,668,560'Sublimation transfer type color hard-copy printing paper'19874,666,320'Ink ribbon for sublimation transfer type hard copy'19874,651,645'Sublimation ink ribbon'19874,599,259'Cover film for sublimation transfer type hard copy'19864,522,881'Cover film for color hard copy printing paper'19854,323,659'Non-flammable adhesive compositions'19824,303,760'Adhesive'19814,158,725'Method of manufacturing an adhesive'19794,033,840'Thermosetting acryloyloxy-terminate butadiene polymers'19774,027,063'Flame retardant thermosetting resin'19774,001,479'Novel naphthalate polyester fibers, and their end uses'19773,939,079'Filter medium which permits increased amount of filtration'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–2001Patents assigned to SONY CORP (37)· patent assignee history
1977–1988Based in Utsunomiya, JP· patent location history
1982–1990Based in Kanuma, JP· patent location history
1988–2001Based in Tochigi, JP· patent location history
1994–2002Based in Kanagawa, JP· patent location history
1995–2005Patents assigned to SHOWA DENKO KK (3)· patent assignee history
1995–1997Patents assigned to NEW OJI PAPER CO LTD (2)· patent assignee history
2001–2005Patents assigned to SUMITOMO SPEC METALS (2)· patent assignee history
2001–2005Based in Hyogo, JP· patent location history
2004–2005Patents assigned to NEOMAX CO LTD (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SONY CORP371977–2001
SHOWA DENKO KK31995–2005
NEOMAX CO LTD22004–2005
NEW OJI PAPER CO LTD21995–1997
SUMITOMO SPEC METALS22001–2005
Locations
LocationPatentsSpan
Tochigi, JP121988–2001
Kanagawa, JP111994–2002
Utsunomiya, JP71977–1988
Kanuma, JP41982–1990
Hyogo, JP32001–2005