Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Asahi Rubber — 31 Patents

Rank (All Time): #19,638 of 105,732Top 20%
63 inventors
31 Patents All Time

Patents per Year

Patents granted per year, 1990 to 2025Bar chart with a peak of 4 patents in 2022.peak 41990: 1 patents19902001: 1 patents2002: 1 patents20022003: 2 patents2004: 1 patents20042005: 1 patents2008: 1 patents20082009: 1 patents2011: 1 patents20112013: 1 patents2014: 2 patents20142015: 2 patents2016: 1 patents20162017: 3 patents2019: 1 patents20192020: 2 patents2021: 1 patents20212022: 4 patents2024: 2 patents20242025: 2 patents2025

Top Inventors at Asahi Rubber All Time

Showing 1–50 of 63 inventors

RankNamePatents
1 Masutsugu Tasaki 16
2 Akira Ichikawa 8
3 Tsutomu Odaki 7
#4 Kazuhisa Takagi 6
#4 Naoto Igarashi 6
#6 Takayuki Motoyanagi 5
#7 Maimi Yoshida 4
#8 Hideaki Sato 3
#8 Masashi Nemoto 3
#8 Nobuyuki Tomizawa 3
#8 Takashi Kanahira 3
#8 Takeru Kawaguchi 3
#13 Eiji Ishiguro 2
#13 Kenichi Ozawa 2
#13 Masutugu Tasaki 2
#13 Naoya Mashiko 2
#13 Nobuyoshi Watanabe 2
#13 Satoshi Endo 2
#13 Yuta Ito 2
#20 Kunihiko Otani 1
#20 Akihiro Higuchi 1
#20 Akira Yoshida 1
#20 Ayumi Takata 1
#20 Daisuke Tanaka 1
#20 Hirofumi ETO 1
#20 Hiroki Hirakuri 1
#20 Hiroki Oguro 1
#20 Hideo Takamatsu 1
#20 Hiroyuki Yasui 1
#20 Kazuaki Hashimoto 1
#20 Kazunori Kaede 1
#20 Kenichi Kagawa 1
#20 Keiichi Muramatsu 1
#20 Keiichi Watanuki 1
#20 Kenichi Yamazaki 1
#20 Koichi Amari 1
#20 Kosho Iwasaki 1
#20 Kunio Mori 1
#20 Masahiro Asayama 1
#20 Masaru Azuma 1
#20 Masafumi Takeyama 1
#20 Mizuho Maeda 1
#20 Motofumi Tanaka 1
#20 Munetomo Nakamura 1
#20 Osamu Sakai 1
#20 Shigenori Ozaki 1
#20 Shigeyoshi Yokoyama 1
#20 Takeo Yamashita 1
#20 Tatsuya Yanamoto 1
#20 Tomoaki KURAKAZU 1

Most Valuable Patents

PatentEst. ValueYear
Acrylic resin plastisol coating compound$1M2005

All 100 most valuable US patents →