Inventor · disambiguated record
Masazumi Watanabe
Also filed as: WATANABE MASAZUMI · YAMAMURA YUICHI
27 granted patents·252 citations·filing 1973–2020
96Inventor score
Files withTAKEDA CHEMICAL INDUSTRIES LTD19KIKKOMAN CORP4SHISEIDO CO LTD2NAKAZAWA YOSHIYUKI1PANASONIC IP CORP AMERICA1
Top patents by PatentIndex Score
27 records- 0194US4139545AAralkyl carboxylic acid compoundsTAKEDA CHEMICAL INDUSTRIES LTD·Filed 1975·Granted Feb 13, 1979·31 cites·21 claims
- 0293US3957836AQuinone derivativesTAKEDA CHEMICAL INDUSTRIES LTD·Filed 1974·Granted May 18, 1976·27 cites·15 claims
- 0392US4271083A6-Hydroxy-1,4-benzoquinone compoundsTAKEDA CHEMICAL INDUSTRIES LTD·Filed 1978·Granted Jun 2, 1981·28 cites·10 claims
- 0487US4035512AAminotetralolsTAKEDA CHEMICAL INDUSTRIES LTD·Filed 1975·Granted Jul 12, 1977·19 cites·49 claims
- 0584US4495104AQuinone carboxylic acids and ester derivativesTAKEDA CHEMICAL INDUSTRIES LTD·Filed 1980·Granted Jan 22, 1985·24 cites·9 claims
- 0680US4831265AMethod of producing quinone derivativesTAKEDA CHEMICAL INDUSTRIES LTD·Filed 1987·Granted May 16, 1989·15 cites·3 claims
- 0777US8499713B2Water-based coating application systemNAKAZAWA YOSHIYUKI·Filed 2006·Granted Aug 6, 2013·3 cites·6 claims
- 0875US4514420AAntifibrotic agentTAKEDA CHEMICAL INDUSTRIES LTD·Filed 1983·Granted Apr 30, 1985·14 cites·10 claims
- 0972US4358461AAntiallergic agentTAKEDA CHEMICAL INDUSTRIES LTD·Filed 1981·Granted Nov 9, 1982·12 cites·7 claims
- 1068US4407757AAralkyl carboxylic acid compoundsTAKEDA CHEMICAL INDUSTRIES LTD·Filed 1980·Granted Oct 4, 1983·8 cites·20 claims
- 1162US4342779A7-Acetylspirobenzofuranone compoundTAKEDA CHEMICAL INDUSTRIES LTD·Filed 1981·Granted Aug 3, 1982·4 cites·3 claims
- 1259US4284644ASpirobenzofuranone compoundsTAKEDA CHEMICAL INDUSTRIES LTD·Filed 1980·Granted Aug 18, 1981·4 cites·30 claims
- 1357US4330554ASpirobenzofuranone compoundsTAKEDA CHEMICAL INDUSTRIES LTD·Filed 1981·Granted May 18, 1982·3 cites·7 claims
- 1457US4010202A5,6-Dihydroxy aminotetralol compoundsTAKEDA CHEMICAL INDUSTRIES LTD·Filed 1975·Granted Mar 1, 1977·11 cites·23 claims
- 1555US4393083AMethod for producing grape must and wineKIKKOMAN CORP·Filed 1981·Granted Jul 12, 1983·9 cites·7 claims
- 1653US4525361AAralkyl carboxylic acid compounds in compositions for potentiating immuno activityTAKEDA CHEMICAL INDUSTRIES LTD·Filed 1983·Granted Jun 25, 1985·3 cites·7 claims
- 1752US4897420ABenzoquinone derivatives, their production and useTAKEDA CHEMICAL INDUSTRIES LTD·Filed 1988·Granted Jan 30, 1990·5 cites·9 claims
- 1848US4191778AAqueous immunoregulatory agentTAKEDA CHEMICAL INDUSTRIES LTD·Filed 1977·Granted Mar 4, 1980·3 cites·8 claims
- 1947US11865232B2Scattering device and doorPANASONIC IP CORP AMERICA·Filed 2020·Granted Jan 9, 2024·0 cites·10 claims
- 2043US4104402A5,6-Dihydroxy aminotetralol compoundsTAKEDA CHEMICAL INDUSTRIES LTD·Filed 1976·Granted Aug 1, 1978·3 cites·15 claims
- 2142US4370416AHydroxy-cinnamic acid ester hydrolase and process for producing sameKIKKOMAN CORP·Filed 1981·Granted Jan 25, 1983·9 cites·8 claims
- 2234US6177067B1Hair revitalizing tonic composition containing a 2,2-dimethylpropanediol compound and use thereofSHISEIDO CO LTD·Filed 1998·Granted Jan 23, 2001·4 cites·19 claims
- 2333US4558068ASpirobenzofuranones and their use in treating peptic ulcersTAKEDA CHEMICAL INDUSTRIES LTD·Filed 1984·Granted Dec 10, 1985·0 cites·7 claims
- 2433US4041079ABicyclic compoundsTAKEDA CHEMICAL INDUSTRIES LTD·Filed 1973·Granted Aug 9, 1977·3 cites·8 claims
- 2531US4426448ANovel hydroxy-cinnamic acid ester hydrolase and process for producing sameKIKKOMAN CORP·Filed 1982·Granted Jan 17, 1984·4 cites·2 claims
- 2629US5973000AHair revitalization tonic composition containing a lipid derivative and use thereofSHISEIDO CO LTD·Filed 1997·Granted Oct 26, 1999·2 cites·9 claims
- 2729US4505938AProcess for producing a seasoningKIKKOMAN CORP·Filed 1983·Granted Mar 19, 1985·4 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →