Inventor

Eiichi Sakamoto

Inventor

Hino, JP

Overview

1977–1998

Patent span

Physics

Primary field (CPC G)

Patents· 30 as inventor

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

G03Cprimary

G03CPhotosensitive materials for photographic purposes61%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests25%

C21CProcessing of pig-iron, e.g. refining, manufacture of wrought-iron or steel5%

C03BManufacture, shaping, or supplementary processes2%

C03CChemical composition of glasses, glazes or vitreous enamels2%

Y02PClimate change mitigation technologies in the production or processing of goods2%

Y10TTechnical subjects covered by former us classification2%

PatentTitleYear

5,750,255'High strength rock wool and process for producing same'1998 4,990,438'Direct positive light-sensitive silver halide photographic material'1991 4,963,466'Silver halide photographic light-sensitive material suitable for rapid processes comprising hydroquinone and an antifoggant'1990 4,912,026'Light-sensitive silver halide photographic material feasible for rapid processing comprising high boiling solvent and gold compounds'1990 4,892,807'Silver halide photographic light-sensitive material excellent in treatment stability'1990 4,871,658'Silver halide photographic material that is resistant to fogging during storage'1989 4,868,102'Direct positive silver halide light-sensitive photographic material'1989 4,839,263'Method of forming dye image having superior rapid processing performance'1989 4,784,938'Silver halide photographic light-sensitive material'1988 4,741,990'Method for processing silver halide photographic light-sensitive materials'1988 4,725,529'Developing inhibitor arrangment in light-sensitive silver halide color photographic materials'1988 4,564,588'Silver halide photographic material for radiography'1986 4,500,631'Radiographic image forming process'1985 4,400,462'Method for the formation of photographic images'1983 4,308,057'Steel making by converter'1981 4,299,908'Method for forming a negative image'1981 4,252,893'Light-sensitive silver halide photographic material'1981 4,242,444'Process for the preparation of light-sensitive silver halide photographic material'1980 4,192,683'Photographic light-sensitive material'1980 4,173,483'Silver halide photographic emulsions for use in flash exposure'1979 4,160,669'Argon laser flash exposure of spectrally sensitized silver halide photographic material'1979 4,147,542'Silver halide photographic emulsions for use in flash exposure'1979 4,145,218'Process for developing light-sensitive silver halide photographic materials'1979 4,134,767'Silver halide photosensitive material for color photography'1979 4,121,935'Lith-type silver halide photographic light-sensitive material'1978 4,108,668'Light-sensitive silver halide photographic materials'1978 4,050,940'Process for the preparation of a photographic material'1977 4,043,801'Method of simultaneously controlling temperature and carbon content of molten steel at the end-point in oxygen top-blown converter'1977 4,042,400'Light-sensitive silver halide photographic material'1977 4,038,081'Development method'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–1991Patents assigned to KONISHIROKU PHOTO IND (26)· patent assignee history

1977–1981Patents assigned to NIPPON KOKAN KK (2)· patent assignee history

1977–1990Based in Hino, JP· patent location history

1979Patents assigned to FUJIMORI NOBORU (1)· patent assignee history

1979Patents assigned to HABU TEIJI (1)· patent assignee history

1979Patents assigned to MINE KIYOMITSU (1)· patent assignee history

1981–1986Based in Hanno, JP· patent location history

1988Based in Hannou, JP· patent location history

1991Based in Tokyo, JP· patent location history

1998Based in Chiba, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
KONISHIROKU PHOTO IND	26	1977–1991
NIPPON KOKAN KK	2	1977–1981
FUJIMORI NOBORU	1	1979
HABU TEIJI	1	1979
MINE KIYOMITSU	1	1979

Locations

Location	Patents	Span
Hino, JP	22	1977–1990
Hanno, JP	2	1981–1986
Chiba, JP	1	1998
Tokyo, JP	1	1991
Hannou, JP	1	1988