Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Norito Doi

KAKaneka: 3 patents #437 of 1,525Top 30%
KKKanegafuchi Kagaku Kogyo: 2 patents #226 of 691Top 35%
Overall (All Time): #1,022,379 of 4,157,543Top 25%
5 Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
7999032 Methacrylic resin composition Kazuhito Wada, Kimihide Nishimura 2011-08-16
7722946 Methacrylic resin composition, methacrylic resin film, and vinyl chloride molded article with the film layered Kazuhito Wada, Kimihide Nishimura 2010-05-25
7195816 Acrylic film and laminates comprising the same Takao Shibata, Yoichi Matsumura, Shigemi Matsumoto 2007-03-27
6136918 Rubber latexes, graft copolymers, and thermoplastic resin compositions Ikuhiro Mishima, Youichi Matsumura, Shigemi Matsumoto, Shinobu Ochikoshi, Kazuhito Wada +1 more 2000-10-24
5798414 Resin composition excellent in impact strength Ikuhiro Mishima, Youichi Matsumura, Shigemi Matsumoto 1998-08-25