MA

Masatsugu Akiba

SC Sumitomo Chemical: 15 patents #265 of 4,033Top 7%
📍 Tsukuba, JP: #226 of 2,818 inventorsTop 9%
Overall (All Time): #324,881 of 4,157,543Top 8%
15
Patents All Time

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #TitleCo-InventorsDate
8536258 Stabilizer and method of manufacturing the same, thermoplastic polymer composition using the same, and method of stabilizing thermoplastic polymer Ryoji Soma, Kenji Kimura 2013-09-17
8076402 Bisphenol monoester compound Ryoji Soma, Toyomochi Tamato, Tatsumi Nuno 2011-12-13
7977418 Bisphenol monoester-based stabilizer composition, thermoplastic polymer composition and method of manufacturing the same, thermoplastic polymer molded product, and method of stabilizing thermoplastic polymer Kenji Kimura, Ryoji Soma, Toyomochi Tamato 2011-07-12
6011130 Epoxy resin composition and process for producing the same Noriyuki Arai 2000-01-04
5939473 Epoxy resin, resin composition, and resin-encapsulated semiconductor device Yasuhiro Hirano, Akira Yokota, Hiroshi Nakamura, Shigeki Naitoh 1999-08-17
5939509 Epoxy resin, resin composition, and resin-encapsulated semiconductor device Yasuhiro Hirano, Akira Yokota, Hiroshi Nakamura, Shigeki Naitoh 1999-08-17
5854370 Epoxy resin stilbenes and process for producing the same by photoisomerization Akira Yokota, Yasuhiro Hirano, Hiroshi Nakamura, Shigeki Naitoh 1998-12-29
5780145 Filler-containing resin composition suitable for injection molding and transfer molding Yasuhiro Hirano, Yutaka Shiomi, Noriaki Saito 1998-07-14
5750789 Unsaturated imide compounds containing alicyclic structure, process for producing the same and intermediate therefor Yasuhiro Hirano, Yasuhiro Endo, Kazuo Takebe, Mitsuhiro Shibata, Shuichi Kanagawa +2 more 1998-05-12
5719225 Filler-containing resin composition suitable for injection molding and transfer molding Yasuhiro Hirano, Yutaka Shiomi, Noriaki Saito 1998-02-17
5705596 Epoxy resin and process for producing the same Akira Yokota, Yasuhiro Hirano, Hiroshi Nakamura, Shigeki Naitoh 1998-01-06
5646204 Epoxy resin composition and resin-encapsulated semiconductor device Yutaka Shiomi, Kazuo Takebe, Noriaki Saito, Takashi Morimoto 1997-07-08
5498687 Unsaturated imide compounds containing alicyclic structure, process for producing the same and intermediate therefor Yasuhiro Hirano, Yasuhiro Endo, Kazuo Takebe, Mitsuhiro Shibata, Shuichi Kanagawa +2 more 1996-03-12
5444165 Unsaturated imide compounds containing alicyclic structure, process for producing the same and intermediate therefor Yasuhiro Hirano, Yasuhiro Endo, Kazuo Takebe, Mitsuhiro Shibata, Shuichi Kanagawa +2 more 1995-08-22
5326881 Unsaturated imide compounds containing alicyclic structure, process for producing the same and intermediate therefor Yasuhiro Hirano, Yasuhiro Endo, Kazuo Takebe, Mitsuhiro Shibata, Shuichi Kanagawa +2 more 1994-07-05