Inventor · disambiguated record
Iwao Sakaguchi
Also filed as: SAKAGUCHI IWAO
8 granted patents·1 pending application·166 citations·filing 1980–2018
86Inventor score
Files withSUMITOMO CHEMICAL CO4MINEBEA CO LTD1NAGANO KEIKI SEISAKUSHO KK1NAGANOKEIKI SEISAKUJO COMPANY1SUMIMOTO CHEMICAL COMPANY LIMI1
Top patents by PatentIndex Score
9 records- 0182US4966533AVacuum pump with rotational sliding piston supportNAGANO KEIKI SEISAKUSHO KK·Filed 1988·Granted Oct 30, 1990·46 cites·15 claims
- 0281US4317908AProcess for producing dioxazine violet pigmentSUMITOMO CHEMICAL CO·Filed 1980·Granted Mar 2, 1982·13 cites·18 claims
- 0374US4481358AProcess for producing dioxazine violet pigmentSUMITOMO CHEMICAL CO·Filed 1982·Granted Nov 6, 1984·10 cites·13 claims
- 0468US4354506AIntracranial pressure gaugeNAGANOKEIKI SEISAKUJO COMPANY·Filed 1980·Granted Oct 19, 1982·93 cites·9 claims
- 0548US2020404863A1Layer for suppressing permeation of soil moisture, greening system, and method of constructing greening systemSUMITOMO RUBBER IND·Filed 2018·Application pending·0 cites
- 0640US5416263AProcess for producing 4,4'-Diamino-1,1'-dianthraquinonyl pigmentsSUMITOMO CHEMICAL CO·Filed 1993·Granted May 16, 1995·2 cites·12 claims
- 0731US5320678AProcess for producing 4,4'-diamino-1,1,'-dianthraquinonyl pigmentsSUMITOMO CHEMICAL CO·Filed 1992·Granted Jun 14, 1994·1 cites·4 claims
- 0827US5393899AProcess for purification of crude 4,4'-diamino-1,1'-dianthraquinonyl-3,3'-disulfonic acids and salts thereofSUMIMOTO CHEMICAL COMPANY LIMI·Filed 1993·Granted Feb 28, 1995·1 cites·12 claims
- 0925US6778286B2Apparatus for measuring distortion of cylindrical bodyMINEBEA CO LTD·Filed 2002·Granted Aug 17, 2004·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →