Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
NC

Nippon Piston Ring Co. — 3 Patents in 2021

Rank (2021): #10,667 of 31,507Top 35%
14 inventors
3 Patents 2021

Top Inventors at Nippon Piston Ring Co. 2021

Showing 1–14 of 14 inventors

RankNamePatents
1 Atsushi Chiba 1
1 Hiroshi Matsushima 1
1 Hirokazu Murata 1
1 Iwao Hiraishi 1
1 Jyuta Tase 1
1 Kazuhiro Fujimura 1
1 Kazuhiko Kanno 1
1 Kazumi Moroi 1
1 Mitsuru Urabe 1
1 Naoyuki Akimoto 1
1 Takashi Kawabata 1
1 Takasumi KUBO 1
1 Yoshiki Ishikawa 1
1 Yuki KIMURA 1