Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
OC

Otax Co. — 9 Patents

Rank (All Time): #57,836 of 105,732Top 55%
15 inventors
9 Patents All Time

Patents per Year

Patents granted per year, 1996 to 2009Bar chart with a peak of 2 patents in 1996.peak 21996: 2 patents19961998: 1 patents19981999: 1 patents19992006: 2 patents20062008: 1 patents20082009: 2 patents2009

Top Inventors at Otax Co. All Time

Showing 1–15 of 15 inventors

RankNamePatents
1 Kazuo Aoki 4
2 Mitsuru Kainuma 3
2 Naoki Hiyama 3
2 Tadahiro Ohkura 3
2 Toshiyuki Yoshida 3
#6 Hiroshi Narita 2
#7 Hiroshi Abe 1
#7 Hiroaki Aoto 1
#7 Hiroshi Iwamiya 1
#7 Hidenori Muramatsu 1
#7 Kazuto Ushiyama 1
#7 Katsumi Yamaguchi 1
#7 Mituru Kainuma 1
#7 Sentaro Motohashi 1
#7 Young Ho Choi 1

Most Valuable Patents

PatentEst. ValueYear
PC card connector assembly$46M2006

All 100 most valuable US patents →