SS

Shinichi Sekikawa

AK Asahi Kasei Kabushiki Kaisha: 8 patents #28 of 1,220Top 3%
AC Asahi Kasei Chemicals: 4 patents #74 of 543Top 15%
Bridgestone: 1 patents #1,586 of 2,860Top 60%
Overall (All Time): #393,287 of 4,157,543Top 10%
12
Patents All Time

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDate
12215179 Conjugated diene-based polymer, branching agent, production method for conjugated diene-based polymer, oil extended conjugated diene-based polymer, rubber composition, and tire Shogo Sumitani, Kenta Hisamura, Miki Kyo, Shuri Tobo 2025-02-04
12043741 Conjugated diene-based polymer composition and tire Shogo Sumitani, Kenta Hisamura, Yoshifumi Araki 2024-07-23
11884760 Production method for branched conjugated diene-based polymer, production method for rubber composition, production method for tire, branched conjugated diene-based polymer, and branched conjugated diene-based polymer composition Kenta Hisamura, Syogo Sumitani, Yoshifumi Araki 2024-01-30
11414503 Modified conjugated diene-based polymer, rubber composition, and tire Miki Kyo 2022-08-16
11207918 Modified conjugated diene-based polymer and rubber composition thereof, and tire Miki Kyo 2021-12-28
10519254 Modified conjugated diene-based polymer and production method therefor, rubber composition and tire Miki Kyo, Hiromi Nakafutami 2019-12-31
10434821 Modified conjugated diene-based polymer and production method therefor, rubber composition and tire Miki Kyo 2019-10-08
9644046 Method for producing modified conjugated diene-based polymer, modified conjugated diene-based polymer, and modified conjugated diene-based polymer composition Junichi Yoshida, Takaaki Matsuda 2017-05-09
9193807 Method for producing modified conjugated diene-based polymer, modified conjugated diene-based polymer, and modified conjugated diene-based polymer composition Junichi Yoshida, Takaaki Matsuda 2015-11-24
8946339 Modified conjugated diene-based polymer, method for producing the same, modified conjugated diene-based polymer composition, and tire Junichi Yoshida, Ryoko Fukuoka 2015-02-03
8816014 Method for producing modified conjugated diene-based polymer, modified conjugated diene-based polymer, and modified conjugated diene-based polymer composition Junichi Yoshida, Takaaki Matsuda 2014-08-26
6455635 Hydrogenated block copolymer Jun Yonezawa, Hiromi Nakafutami, Takashi Sato 2002-09-24