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Nippon Piston Ring Co.

Rank (All Time): #3574 of 106,127Top 4%
208 inventors
216
Patents All Time

Top Inventors at Nippon Piston Ring Co. All Time

Showing 1–50 of 208 inventors

RankNamePatents
1 Hiroshi Sakamaki 26
2 Yukio Horikoshi 22
3 Shunsuke Takeguchi 18
#4 Katsuaki Ogawa 16
#5 Shigeru Urano 15
#5 Yoshikatsu Nakamura 15
#7 Susumu Sugishita 14
#7 Teruo Takahashi 14
#9 Osamu Kawamura 13
#9 Takeshi Hiraoka 13
#11 Genkichi Umeha 10
#11 Hiroshi Oshige 10
#11 Hiroyuki Sugiura 10
#14 Kikuji Yanagihashi 9
#14 Motonobu Onoda 9
#16 Hideshi Hitosugi 8
#16 Masajiro Takeshita 8
#16 Makoto Kajiwara 8
#16 Satoshi Kawai 8
#20 Iwao Hiraishi 7
#20 Kazuhiro Fujimura 7
#20 Kenichi Sato 7
#20 Kentaro Takahashi 7
#20 Osamu Hirakawa 7
#20 Yoshiki Ishikawa 7
#20 Atsushi Chiba 7
#27 Hiroshi Takiguchi 6
#27 Takahiro Okazaki 6
#27 Takeshi Tsuchiya 6
#27 Yoshiaki Fujita 6
#27 Arata Kakiuchi 6
#32 Keiichi Kanemitsu 5
#32 Satoshi IKEMI 5
#32 Soichi Shimomura 5
#32 Takeji Tsuchiya 5
#32 Tetsuo Masuyama 5
#37 Hideki Moriguchi 4
#37 Kazuo Shimizu 4
#37 Kenji Arai 4
#37 Shuji Sameshima 4
#37 Takasumi KUBO 4
#37 Takuya OZAKI 4
#37 Toshiaki Sato 4
#37 Yoshihiro Ito 4
#45 Kazuhiro Sameshima 3
#45 Katsuaki Sato 3
#45 Kenji Asano 3
#45 Keiji Nakamura 3
#45 Naoyuki Akimoto 3
#45 Satoshi Kawashima 3