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

Yamasa — 72 Patents

Rank (All Time): #9,305 of 105,732Top 9%
108 inventors
72 Patents All Time

Patents per Year

Patents granted per year, 1995 to 2025Bar chart with a peak of 6 patents in 2011.peak 61995: 2 patents19951997: 2 patents1998: 2 patents1999: 5 patents19992000: 4 patents2001: 4 patents2002: 3 patents20022003: 1 patents2004: 1 patents2005: 3 patents20052006: 3 patents2007: 1 patents2008: 3 patents20082009: 1 patents2010: 5 patents2011: 6 patents20112012: 3 patents2013: 4 patents2014: 3 patents20142015: 1 patents2016: 1 patents2017: 1 patents20172018: 1 patents2019: 2 patents2020: 3 patents20202021: 2 patents2022: 2 patents2023: 1 patents20232024: 1 patents2025: 1 patents2025

Top Inventors at Yamasa All Time

Showing 1–50 of 108 inventors

RankNamePatents
1 Toshitada Noguchi 13
2 Kazuya Ishige 10
3 Satoru Kohgo 7
3 Tomoki Hamamoto 7
#5 Eiichi Kodama 6
#5 Hiroaki Mitsuya 6
#5 Hiroshi Ohrui 6
#5 Kazuki Endo 6
#5 Ken Nishioka 6
#5 Kohei Yamada 6
#5 Masaaki Ozaki 6
#5 Takahisa Kaneko 6
#5 Takashi Yamaguchi 6
#14 Haruhiko Machida 5
#14 Hiroshi Kawakami 5
#14 Tsuneo Uchida 5
#14 Yoshio Aoki 5
#18 Eiji Matsuura 4
#18 Masao Matsuoka 4
#18 Yuichi Yoshimura 4
#21 Hideaki Maeda 3
#21 Hiroshi Sato 3
#21 Kenji Kitano 3
#21 Kenji Takenouchi 3
#21 Kiyoshi Okuyama 3
#21 Masaru Hamaoki 3
#21 Mikari Watanabe 3
#21 Shinji Sakata 3
#21 Takao Koike 3
#21 Takashi Konno 3
#21 Takanori Miyashita 3
#21 Toichi Abiru 3
#21 Yutaka Noda 3
#21 Yusuke Ohba 3
#35 Akira Matsuda 2
#35 Fumitaka Kano 2
#35 Hiroyuki Hayakawa 2
#35 Hirohisa Katoh 2
#35 Hitoshi Kusakabe 2
#35 Hisato Nagae 2
#35 Hisaki Tanaka 2
#35 Junzo Kamei 2
#35 Kaori Tanabe 2
#35 Kazuhiro Uemoto 2
#35 Noriyuki Ashida 2
#35 Ryozo Nagai 2
#35 Shinji Miura 2
#35 Shinya Onuma 2
#35 Shiro Shigeta 2
#35 Takuma Sasaki 2