TW

Takaji Watanabe

Merck: 6 patents #1,819 of 9,382Top 20%
Overall (All Time): #894,121 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
4956019 Novel flaky color pigment and process for producing the same Tamio Noguchi 1990-09-11
4828623 Water resistant nacreous pigment and process for producing the same Katsuhisa Nitta, Isao Suzuki 1989-05-09
4772331 Flaky colored pigments, methods for their production, and their use in cosmetic compositions Tamio Noguchi 1988-09-20
4720438 Molded clay article coated with pearl pigment Katsuhisa Nitta 1988-01-19
4603047 Flaky pigments, process for their preparation Tamio Noguchi 1986-07-29
4435220 Transparent colored pigments Tamio Noguchi 1984-03-06