Inventor · disambiguated record
Hisao Nishiyama
Also filed as: NISHIYAMA HISAO
4 granted patents·65 citations·filing 1980–1999
72Inventor score
Top patents by PatentIndex Score
4 records- 0181US4993099ACleaning and polishing padYACHIYO MICRO SCIENCE COMPANY·Filed 1989·Granted Feb 19, 1991·50 cites·3 claims
- 0273US4301164A5,6,7-Trinor-4,8-inter-m-phenylene PGI2 derivativesTORAY INDUSTRIES·Filed 1980·Granted Nov 17, 1981·15 cites·33 claims
- 0329US6323348B1Process for producing cycloalkyl [b]benzofuransTORAY INDUSTRIES·Filed 1999·Granted Nov 27, 2001·0 cites·3 claims
- 0429US6103914AMethod of producing optically active material of tricyclic compoundTORAY INDUSTRIES·Filed 1998·Granted Aug 15, 2000·0 cites·5 claims
Join the waitlist — get patent alerts
Get an alert when Hisao Nishiyama 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 →