Inventor · disambiguated record
Hirofumi Okuyama
Also filed as: OKUYAMA HIROFUMI
9 granted patents·51 citations·filing 1975–1983
86Inventor score
Files withFUJITSU LTD9
Top patents by PatentIndex Score
9 records- 0161US4555466ADeveloper comprising a carrier coated with Fe3 O4 dispersed in a butadiene polymer, and a tonerFUJITSU LTD·Filed 1983·Granted Nov 26, 1985·11 cites·11 claims
- 0260US4455361AProcess for preparing developer materials for electrostatic imagesFUJITSU LTD·Filed 1981·Granted Jun 19, 1984·9 cites·20 claims
- 0350US4522909AProcess for preparing electrostatic developerFUJITSU LTD·Filed 1983·Granted Jun 11, 1985·6 cites·41 claims
- 0450US4513075ADeveloper materials for electrostatic imagesFUJITSU LTD·Filed 1981·Granted Apr 23, 1985·6 cites·14 claims
- 0546US4547309AStorage-type liquid crystal compositionFUJITSU LTD·Filed 1983·Granted Oct 15, 1985·10 cites·15 claims
- 0646US4517266AHolographic recording material and process for producing hologramsFUJITSU LTD·Filed 1983·Granted May 14, 1985·5 cites·4 claims
- 0731US4454213AOrganic photosensitive material for electrophotographyFUJITSU LTD·Filed 1982·Granted Jun 12, 1984·1 cites·10 claims
- 0831US4362801ACopper phthalocyanine photosensitive material for electrophotography with binder and an oxadiazoleFUJITSU LTD·Filed 1981·Granted Dec 7, 1982·1 cites·2 claims
- 0928US3997463ANematic liquid crystal composition for electro-optical displaysFUJITSU LTD·Filed 1975·Granted Dec 14, 1976·2 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →