Inventor · disambiguated record
Hirofumi Kamiishi
Also filed as: KAMIISHI HIROFUMI
4 granted patents·86 citations·filing 1984–1990
77Inventor score
Files withNIPPON OIL CO LTD4
Top patents by PatentIndex Score
4 records- 0180US4996011AProduction of polyethylene materials having improved strength and modulus qualitiesNIPPON OIL CO LTD·Filed 1989·Granted Feb 26, 1991·46 cites·15 claims
- 0272US5002714AProcess for producing highly oriented polyethylene materialNIPPON OIL CO LTD·Filed 1989·Granted Mar 26, 1991·30 cites·12 claims
- 0346US5026511AProcess for the production of polyethylene materialsNIPPON OIL CO LTD·Filed 1990·Granted Jun 25, 1991·9 cites·8 claims
- 0429US4537938AProcess for preparing polyolefinsNIPPON OIL CO LTD·Filed 1984·Granted Aug 27, 1985·1 cites·6 claims
Join the waitlist — get patent alerts
Get an alert when Hirofumi Kamiishi 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 →