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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

RankNamePatents
1 Hiroshi Sakamaki 26
2 Yukio Horikoshi 22
3 Shunsuke Takeguchi 18
#4 Katsuaki Ogawa 16
#5 Shigeru Urano 15
#6 Yoshikatsu Nakamura 15
#7 Susumu Sugishita 14
#8 Teruo Takahashi 14
#9 Osamu Kawamura 13
#10 Takeshi Hiraoka 13
#11 Genkichi Umeha 10
#12 Hiroshi Oshige 10
#13 Hiroyuki Sugiura 10
#14 Kikuji Yanagihashi 9
#15 Motonobu Onoda 9
#16 Hideshi Hitosugi 8
#17 Masajiro Takeshita 8
#18 Makoto Kajiwara 8
#19 Satoshi Kawai 8
#20 Iwao Hiraishi 7
#21 Kazuhiro Fujimura 7
#22 Kenichi Sato 7
#23 Kentaro Takahashi 7
#24 Osamu Hirakawa 7
#25 Yoshiki Ishikawa 7
#26 Atsushi Chiba 7
#27 Hiroshi Takiguchi 6
#28 Takahiro Okazaki 6
#29 Takeshi Tsuchiya 6
#30 Yoshiaki Fujita 6
#31 Arata Kakiuchi 6
#32 Keiichi Kanemitsu 5
#33 Satoshi IKEMI 5
#34 Soichi Shimomura 5
#35 Takeji Tsuchiya 5
#36 Tetsuo Masuyama 5
#37 Hideki Moriguchi 4
#38 Kazuo Shimizu 4
#39 Kenji Arai 4
#40 Shuji Sameshima 4
#41 Takasumi KUBO 4
#42 Takuya OZAKI 4
#43 Toshiaki Sato 4
#44 Yoshihiro Ito 4
#45 Kazuhiro Sameshima 3
#46 Katsuaki Sato 3
#47 Kenji Asano 3
#48 Keiji Nakamura 3
#49 Naoyuki Akimoto 3
#50 Satoshi Kawashima 3
#51 Tadashi Ebihara 3
#52 Takashi Kawamoto 3
#53 Takao Omiya 3
#54 Teruyuki Oda 3
#55 Tomotaka Kariya 3
#56 Yasuo Suzuki 3
#57 Yoshio Onodera 3
#58 Akinori Shibata 3
#59 Ayato OIKAWA 2
#60 Eisuke Sugahara 2
#61 Fujio Anzai 2
#62 Fumihiro Ushijima 2
#63 Hiroshi Ikutake 2
#64 Hiromi Ishikawa 2
#65 Hideyo Iwama 2
#66 Hiroshi Matsushima 2
#67 Hirokazu Murata 2
#68 Hiroki Takahashi 2
#69 Hiroyasu Tomii 2
#70 Ichiro Tanimoto 2
#71 Junpei Ogawa 2
#72 Kazutomo Takahashi 2
#73 Katsuhiko Tominaga 2
#74 Keishi Nanno 2
#75 Kiyoshi Suwa 2
#76 Kiyoshi Yamamoto 2
#77 Koji Takeuchi 2
#78 Koji Umezawa 2
#79 Makoto Kano 2
#80 Masahito Miki 2
#81 Masafumi Morita 2
#82 Masafumi Sakamoto 2
#83 Makoto Tsuruta 2
#84 Michiyoshi Matsuzaki 2
#85 Mitsuru Urabe 2
#86 Noriaki Chida 2
#87 Nobuyuki Matsushima 2
#88 Nobuyuki Murakami 2
#89 Seisuke Takaki 2
#90 Shin Ishida 2
#91 Shigeo Murata 2
#92 Shuji Samejima 2
#93 Shigeyoshi SATO 2
#94 Shiro Shibata 2
#95 Shunsuke Takegushi 2
#96 Shinichi Yamamoto 2
#97 Taro Itoh 2
#98 Takashi Kawabata 2
#99 Takashi Kawaguchi 2
#100 Takeo Kooroki 2