Inventor · disambiguated record
Shigenori Kumagai
Also filed as: KUMAGAI SHIGENORI
6 granted patents·527 citations·filing 1989–1994
88Inventor score
Files withSHISEIDO CO LTD6
Top patents by PatentIndex Score
6 records- 0196US5122418AComposite powder and production processSHISEIDO CO LTD·Filed 1990·Granted Jun 16, 1992·223 cites·5 claims
- 0294US5362482AWater-in-oil emulsion solid cosmetic compositionSHISEIDO CO LTD·Filed 1993·Granted Nov 8, 1994·135 cites·9 claims
- 0380US5176905APhotochromic flesh-colored pigment and process for producing the sameSHISEIDO CO LTD·Filed 1990·Granted Jan 5, 1993·61 cites·10 claims
- 0477US5182103AMagnesium aluminometasilicate coated composite powder and use thereofSHISEIDO CO LTD·Filed 1989·Granted Jan 26, 1993·45 cites·13 claims
- 0570US5628934APhotochromic color rendering regulatory composition and cosmeticsSHISEIDO CO LTD·Filed 1994·Granted May 13, 1997·37 cites·23 claims
- 0659US5500533AMethod and apparatus for measuring ultraviolet protection effectivenessSHISEIDO CO LTD·Filed 1994·Granted Mar 19, 1996·26 cites·15 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →