RI

Ryuichi Ishikawa

NC Nippon Shokubai Co.: 5 patents #248 of 1,108Top 25%
MC Mitsubishi Chemical: 4 patents #463 of 3,022Top 20%
EB Ebara: 4 patents #497 of 1,611Top 35%
Mitsubishi Electric: 4 patents #7,099 of 25,717Top 30%
IC Ibiden Co.: 1 patents #451 of 730Top 65%
NM Nippon Steel & Sumitomo Metal: 1 patents #786 of 1,491Top 55%
TF The Japan Iron And Steel Federation: 1 patents #5 of 27Top 20%
Overall (All Time): #232,592 of 4,157,543Top 6%
19
Patents All Time

Issued Patents All Time

Showing 1–19 of 19 patents

Patent #TitleCo-InventorsDate
11951692 Fiber-reinforced resin material, molded article, method and device for manufacturing fiber-reinforced resin material, and fiber bundle group inspection device Hiroshi Iwata, Nobuyuki Yamamoto, Hajime Okutsu, Koichi Akiyama, Takayuki Kobayashi 2024-04-09
11597165 Fiber-reinforced resin material, molded article, method and device for manufacturing fiber-reinforced resin material, and fiber bundle group inspection device Hiroshi Iwata, Nobuyuki Yamamoto, Hajime Okutsu, Koichi Akiyama, Takayuki Kobayashi 2023-03-07
10927479 Producing device and producing method for chopped fiber bundles, producing device and producing method for fiber-reinforced resin forming materials, cutting blade for carbon fiber bundles, and rotary cutter for carbon fiber bundles Tadao Samejima, Hiroshi Iwata, Yukihiro Mizutori, Masatoshi Kamata, Yasushi Watanabe +1 more 2021-02-23
10343352 Fiber-reinforced resin material, molded article, method and device for manufacturing fiber-reinforced resin material, and fiber bundle group inspection device Hiroshi Iwata, Nobuyuki Yamamoto, Hajime Okutsu, Koichi Akiyama, Takayuki Kobayashi 2019-07-09
10247478 Monolithic refractory structure Kohji Kohno, Hiroki TSUKIGASE 2019-04-02
D728750 Well plate Naoyuki Togawa 2015-05-05
D720437 Well plate Naoyuki Togawa 2014-12-30
7013776 Device for cutting optical fiber and a method for cutting optical fiber Kyosuke Harada, Taichi Masuda 2006-03-21
6598508 Optical fiber cutting device Kyosuke Harada, Taichi Masuda 2003-07-29
5959147 Organic sulfide compound and method for production thereof Norihiro Wakao, Youichi Hino 1999-09-28
5833813 Method of recovering and dehydrating ethylene sulfide Hitoshi Yano, Yoshinari Yamaguchi, Hirokazu Ito, Yukihiro Matsumoto, Teruhisa Kaziwara 1998-11-10
5821382 Method for manufacturing thiol compounds Youichi Hino, Norihiro Wakao 1998-10-13
5763620 Process for producing alkylene sulfide Youichi Hino, Yoshitaka Arita, Norihiro Wakao 1998-06-09
5478912 Process for producing modified polyaminoamide, modified polyaminoamide produced thereby, and epoxy resin curing agent comprising the said modified polyaminoamide Kazumasa Kimura, Takashi Kai, Hitoshi Yano, Kazuaki Abe, Yoshihiro Arita 1995-12-26
5304656 Process for preparing alkylene sulfides Hitoshi Yano, Yoshinari Yamaguchi, Kimio Ariyoshi, Yuuji Shimasaki, Michio Ueshima 1994-04-19
5288299 Exhaust gas treating apparatus Hiroshi Yoshida, Mitsuyoshi Kaneko 1994-02-22
5127345 Combustion apparatus and combustion control method therefor Takahiro Ohshita, Chikao Goke, Kiyoshi Asai 1992-07-07
5107757 Apparatus for dewatering waste material by capillary action Takahiro Ohshita, Tetsuhisa Hirose, Kiyoshi Asai 1992-04-28
4324759 Apparatus for treating waste gas by irradiation with electron beams Shinji Aoki, Yasuhiro Sawada 1982-04-13