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

Sankosha

Rank (All Time): #23,366 of 106,127Top 25%
39 inventors
26 Patents All Time

Top Inventors at Sankosha All Time

Showing 1–39 of 39 inventors

RankNamePatents
1 Masaaki Sato 5
2 Yutaka Hayashi 4
3 Daizo Shigemori 3
3 Takayuki Okawa 3
3 Tsuyoshi Kawabata 3
3 Yoshiki Maeyashiki 3
3 Yuji Muramatsu 3
#8 Chikashi Okabayashi 2
#8 Hideyoshi Saeki 2
#8 Hirofumi Yoshihara 2
#8 Makoto Ishizaki 2
#8 Minoru Yoneda 2
#8 Takuya Ouchi 2
#8 Yasuharu Yamada 2
#8 Yoshio Igarashi 2
#8 YUSUKE UCHIKOSHI 2
#17 Fumika Kawahara 1
#17 Hideyuki Harada 1
#17 Hidetoshi Ito 1
#17 Junpei Miyata 1
#17 Junichi Takabe 1
#17 Kazushige Tadokoro 1
#17 Katsumi Watanabe 1
#17 Kenichi Ebuchi 1
#17 Kiyotaka Ando 1
#17 Kouji Idota 1
#17 Masaaki Endo 1
#17 Mitsuru Inoue 1
#17 Shuji Higashi 1
#17 Shin Nakayama 1
#17 Susumu Uchida 1
#17 Takashi Saitou 1
#17 Takashi Shikano 1
#17 Teiji Hasegawa 1
#17 Tetsumi Jinno 1
#17 Yuichi Takahashi 1
#17 Yukio Uwano 1
#17 Haruo Kunii 1
#17 Akihiro Kasai 1