Inventor · disambiguated record
Katsuichi Machida
Also filed as: MACHIDA KATSUICHI
6 granted patents·363 citations·filing 1986–2004
84Inventor score
Top patents by PatentIndex Score
6 records- 0197US4756973APhotochromic lensKUREHA CHEMICAL IND CO LTD·Filed 1986·Granted Jul 12, 1988·251 cites·7 claims
- 0294US5017698ASpirooxazine photochromic compoundsKUREHA CHEMICAL IND CO LTD·Filed 1989·Granted May 21, 1991·32 cites·4 claims
- 0392US7025908B1Optical filter and process for producing the sameKUREHA CORP·Filed 2000·Granted Apr 11, 2006·73 cites·5 claims
- 0453US7067074B2Near-infrared-absorbing composition and optical materialKUREHA CORP·Filed 2001·Granted Jun 27, 2006·4 cites·7 claims
- 0549US6562992B2Optical materialKUREHA CHEMICAL IND CO LTD·Filed 2001·Granted May 13, 2003·3 cites·3 claims
- 0643US7053231B2Building materialKUREHA CHEMICAL IND CO LTD·Filed 2004·Granted May 30, 2006·0 cites·4 claims
Join the waitlist — get patent alerts
Get an alert when Katsuichi Machida 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 →