SK

Shojiro Kaita

Bridgestone: 39 patents #23 of 2,860Top 1%
RI Riken: 9 patents #42 of 1,824Top 3%
BC Bridgestone Sports Co.: 1 patents #141 of 224Top 65%
JS Jsr: 1 patents #649 of 1,137Top 60%
NC Nippon Zeon Co.: 1 patents #307 of 609Top 55%
SK Showa Denko K.K.: 1 patents #940 of 1,736Top 55%
Overall (All Time): #59,545 of 4,157,543Top 2%
47
Patents All Time

Issued Patents All Time

Showing 25 most recent of 47 patents

Patent #TitleCo-InventorsDate
12247091 Laminate and product 2025-03-11
12152096 Method for manufacturing copolymer Shigenaga TAKANO, Olivier Tardif 2024-11-26
12084536 Polybutadiene, method of producing polybutadiene, polybutadiene composition, tire, and resin member Shigenaga TAKANO, Kohtaro Osakada, Daisuke Takeuchi, Shinji Yamakawa 2024-09-10
11472907 Polymerization catalyst composition, polymer manufacturing method, polymer, rubber composition, and tire Shigenaga TAKANO, Kohtaro Osakada, Daisuke Takeuchi, Shinji Yamakawa 2022-10-18
11279785 Production method for copolymer, copolymer, rubber composition, and tire Shigenaga TAKANO, Olivier Tardif 2022-03-22
10875937 Terminal-modified conjugated diene polymer, rubber composition and rubber article Yusuke Yamagata, Shigenaga TAKANO 2020-12-29
10875952 Multi-component copolymer, rubber composition, crosslinked rubber composition, rubber product and tire Kyohei KOTANI, Shigenaga TAKANO, Shigeki Oishi 2020-12-29
10793658 Multi-component copolymer, rubber composition, crosslinked rubber composition, rubber product, and tire Madoka Kimura, Aya Yanagisawa, Shigeki Oishi 2020-10-06
10239964 Method for manufacturing conjugated diene polymer, conjugated diene polymer, rubber composition, and tire Yusuke Yamagata, Narukuni Hirata, Tomoe Tanabe, Madoka Kimura 2019-03-26
10131722 Method for preparing terminal-modified conjugated diene polymer, terminal-modified conjugated diene polymer, rubber composition and tire Narukuni Hirata, Yusuke Yamagata, Tomoe Tanabe 2018-11-20
10087312 Rubber composition and tire containing rubber composition Junko Matsushita, Satoru Tamaki 2018-10-02
10053530 Method for producing a multicomponent copolymer Shigeki Oishi 2018-08-21
9938362 Isoprene polymerization catalyst composition, method for producing synthetic polyisoprene, and synthetic polyisoprene Satoru Tamaki 2018-04-10
9796801 Polymerization catalyst composition, method for producing synthetic polyisoprene, and synthetic polyisoprene Satoru Tamaki 2017-10-24
9777101 Isoprene copolymer and method of producing the same Satoru Tamaki, Junko Matsushita 2017-10-03
9714338 Method for manufacturing polymer composition and the polymer composition Satoru Tamaki, Junko Matsushita 2017-07-25
9701776 Copolymer, rubber composition, crosslinked rubber composition and tire Yasuo Horikawa, Olivier Tardif, Junko Matsushita 2017-07-11
9688798 Method for manufacturing a hydroxy group terminated olefin or conjugated diene polymer Yasuo Wakatsuki 2017-06-27
9670302 Copolymer, rubber composition, crosslinked rubber composition, and tire Yasuo Horikawa, Olivier Tardif, Junko Matsushita 2017-06-06
9540464 Polymer and method for producing same, rubber composition containing polymer, and tire having rubber composition Junko Matsushita, Satoru Tamaki 2017-01-10
9499647 Polymer, rubber composition containing polymer, crosslinked rubber composition obtained by crosslinking rubber composition, and tire having crosslinked rubber composition Junko Matsushita, Satoru Tamaki 2016-11-22
9365666 Polymerization catalyst composition, method for producing synthetic polyisoprene, and synthetic polyisoprene Satoru Tamaki 2016-06-14
9346907 Method for producing copolymer Olivier Tardif, Yasuo Horikawa 2016-05-24
9284384 Method for producing polymerization catalyst composition, polymerization catalyst composition, method for producing polymer composition, and polymer composition Junko Matsushita 2016-03-15
9266978 Copolymer and method of manufacturing the same Olivier Tardif, Hideki Kitano 2016-02-23