YK

Yoshiaki Kumamoto

KA Kao: 29 patents #11 of 3,221Top 1%
📍 Tochigi, JP: #122 of 2,789 inventorsTop 5%
Overall (All Time): #130,841 of 4,157,543Top 4%
29
Patents All Time

Issued Patents All Time

Showing 1–25 of 29 patents

Patent #TitleCo-InventorsDate
11136416 Rubber composition Yutaka Yoshida, Takuma Tsuboi, Shotaro Shibata, Motoi Konishi 2021-10-05
10961425 Viscous water-based composition Yutaka Yoshida 2021-03-30
10906993 Modified cellulose fibers Yutaka Yoshida, Shotaro Shibata, Takuma Tsuboi, Motoi Konishi 2021-02-02
10781552 Micro cellulose fiber complex Kyohei YAMATO 2020-09-22
10738169 Resin composition Yutaka Yoshida, Shotaro Shibata 2020-08-11
10266968 Micro cellulose fiber complex Kyohei YAMATO 2019-04-23
10093798 Polyester resin composition Masahiro Mori, Motoi Konishi, Akiyoshi Kimura, Masahiro Fujioka, Kenta Mukai 2018-10-09
9243128 Composite material Kenta Mukai, Hironobu Kawajiri, Akira Takenaka, Taiki Yoshino, Akira Isogai +2 more 2016-01-26
8256412 Warming tool in a sheet form Masataka Ishikawa, Hironobu Kawajiri, Hisao Nishiguchi 2012-09-04
8197526 Warming tool Masataka Ishikawa, Takao Orii 2012-06-12
8084139 Article formed into sheet, method for producing the same and exothermic formed article Masataka Ishikawa 2011-12-27
8029896 Gas barrier material Kenta Mukai, Toru Ugajin, Takahiro Maezawa, Naoki Honbo, Akira Isogai 2011-10-04
7749357 Molded sheet Masataka Ishikawa, Kunio Matsui 2010-07-06
7625464 Method for producing heat-generating formed product Kunio Matsui, Masataka Ishikawa 2009-12-01
7370788 Formed body Kenichi Otani, Koichi Sagara, Shinji Kodama, Minoru Goto, Susumu Fujinami +7 more 2008-05-13
7353820 Warming device Masataka Ishikawa, Takao Orii, Christine Hall, Jill Kathleen Lynch 2008-04-08
7077933 Pulp molded body Kenichi Otani 2006-07-18
7048975 Pulp molded container Takehiko Tojo, Masataka Ishikawa, Kunio Matsui, Eiki Kimura, Koichi Sagara +3 more 2006-05-23
6974470 Heat-generative, steam generation sheet for face Satoshi Tsunakawa, Conni Weaver, Masataka Ishikawa, Takao Orii, Haruyo Kojima 2005-12-13
6860461 Mold for papermaking Kenichi Otani, Tokuo Tsuura, Minoru Goto, Keiji Eto 2005-03-01
6841041 Method for producing pulp molded article Kenichi Otani, Shinji Otakura, Tokuo Tsuura, Masataka Ishikawa, Toshiyuki Suga +1 more 2005-01-11
6830658 Method for producing pulp molded article Kenichi Otani, Shinji Otakura, Tokuo Tsuura, Masataka Ishikawa, Toshiyuki Suga +1 more 2004-12-14
6810553 Disposable brush Kazuya Otsuji, Masayuki Okawa, Yasuki Tsutsumi, Kaoru Hamada, Jun Yamamoto +3 more 2004-11-02
6645348 Method for producing pulp molded article Shinji Otakura, Kenichi Otani, Shingo Odajima, Tokuo Tsuura 2003-11-11
6547931 Method of manufacturing pulp mold formed product Kenichi Otani, Shinji Otakura, Tokuo Tsuura, Masataka Ishikawa, Toshiyuki Suga +1 more 2003-04-15