Inventor · disambiguated record
Motohiko Tsubota
Also filed as: SAKAGUCHI SHINJI · TSUBOTA MOTOHIKO
12 granted patents·36 citations·filing 1974–1984
88Inventor score
Technology areasG03C
Files withFUJI PHOTO FILM CO LTD12
Top patents by PatentIndex Score
12 records- 0165US4069048ADiffusion transfer photographic materials with color developer scavengerFUJI PHOTO FILM CO LTD·Filed 1976·Granted Jan 17, 1978·8 cites·38 claims
- 0250US4429031AColor diffusion transfer photographic elementFUJI PHOTO FILM CO LTD·Filed 1980·Granted Jan 31, 1984·5 cites·8 claims
- 0345US4178182AColor diffusion-transfer photographic elementFUJI PHOTO FILM CO LTD·Filed 1974·Granted Dec 11, 1979·5 cites·37 claims
- 0442US4267250AColor diffusion transfer photographic elementFUJI PHOTO FILM CO LTD·Filed 1979·Granted May 12, 1981·3 cites·15 claims
- 0541US4486528AColor diffusion transfer photographic element with redox dye releasersFUJI PHOTO FILM CO LTD·Filed 1983·Granted Dec 4, 1984·3 cites·29 claims
- 0640US3930862ADye developer transfer photosensitive material with substituted catechol auxiliary developerFUJI PHOTO FILM CO LTD·Filed 1974·Granted Jan 6, 1976·4 cites·6 claims
- 0737US4542086AColor diffusion transfer element with hydroquinone type compoundFUJI PHOTO FILM CO LTD·Filed 1981·Granted Sep 17, 1985·2 cites·20 claims
- 0836US4124394AColor diffusion transfer photographic materials with sulfone color developing agent scavengersFUJI PHOTO FILM CO LTD·Filed 1976·Granted Nov 7, 1978·2 cites·15 claims
- 0932US4032349AHigh molecular weight mercapto compound in color diffusion transfer processing compositionFUJI PHOTO FILM CO LTD·Filed 1975·Granted Jun 28, 1977·1 cites·12 claims
- 1030US4619889AImage forming methodFUJI PHOTO FILM CO LTD·Filed 1984·Granted Oct 28, 1986·2 cites·2 claims
- 1126US4495270AColor diffusion transfer photographic elementFUJI PHOTO FILM CO LTD·Filed 1982·Granted Jan 22, 1985·1 cites·5 claims
- 1226US4054456ADiazo photographic materials containing 2-hydroxy 3-naphthanilide couplerFUJI PHOTO FILM CO LTD·Filed 1975·Granted Oct 18, 1977·0 cites·7 claims
Join the waitlist — get patent alerts
Get an alert when Motohiko Tsubota files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →