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

Ichiro Azuma — 20 Patents

UNUnknown: 4 patents #4,220 of 83,584Top 6%
TITakeda Chemical Industries: 3 patents #379 of 1,420Top 30%
Mazda Motor: 3 patents #1,256 of 4,755Top 30%
DCDainippon Ink And Chemicals: 3 patents #161 of 1,002Top 20%
Fujitsu Limited: 2 patents #10,930 of 24,456Top 45%
TCToyo Rubber Industry Co.: 1 patents #16 of 50Top 35%
DCDaiichi Seiyaku Co.: 1 patents #38 of 111Top 35%
Sony: 1 patents #17,262 of 25,231Top 70%
DCDainippon Sumitomo Pharma Co.: 1 patents #107 of 256Top 45%
DIDic: 1 patents #467 of 844Top 60%
MKMurata Kikai: 1 patents #251 of 454Top 60%
TCTakara Shuzo Co.: 1 patents #138 of 264Top 55%
Suita, JP: #72 of 1,253 inventorsTop 6%
Overall (All Time): #222,048 of 4,157,543Top 6%
20 Patents All Time

Issued Patents All Time

Showing 1–20 of 20 patents

Patent #TitleCo-InventorsDate
10738203 Curing accelerator for oxidatively polymerizable unsaturated resin, printing ink and coating material Hiroshi Tsutsumi, Akinori Takahashi, Hiroaki Nakano, Takayuki Odashima 2020-08-11
7534443 Preparations for immunotherapy for cancer having bacterial somatic constituent as the active ingredient Norio Hamamatsu, Toshio Fujinaga 2009-05-19
6593096 Immunotherapeutic agent for cancer containing nucleoidal component of bacterium as active ingredient Akira Hayashi, Kumao Toyoshima 2003-07-15
5962588 Curable resin composition, paint using the same, and coat-finishing method Goro Iwamura, Shigeki Matsui, Yoshiaki Marutani, Hiroyuki Uemura, Tadamitsu Nakahama +4 more 1999-10-05
5945483 High solids content resin composition, high solids content type paint, and painting process using the same Goro Iwamura, Shigeki Matsui, Yoshiaki Marutani, Hiroyuki Uemura, Shinji Sasaki +1 more 1999-08-31
5763408 Amino acid derivatives and application thereof Naoyuki Nishikawa, Atsushi Orikasa, Hiroyuki Komazawa, Masayoshi Kojima, Ikuo Saiki 1998-06-09
5705567 High solids content resin composition, high solids content type paint, and painting process using the same Goro Iwamura, Shigeki Matsui, Yoshiaki Marutani, Hiroyuki Uemura, Shinji Sasaki +1 more 1998-01-06
5436221 Tumor metastasis inhibiting compounds and methods Hiroshi Kitaguchi, Hiroyuki Komazawa, Masayoshi Kojima, Hideto Mori, Naoyuki Nishikawa +4 more 1995-07-25
5236903 Polypeptide comprising repeated cell-adhesive core sequences Ikuo Saiki, Norio Nishi, Seiichi Tokura 1993-08-17
5198423 Functional polypeptide containing a cell binding domain and a heparin binding domain of fibronectin Yuki Taguchi, Yoh'ichi Ohdate, Yasutoshi Kawase, Shouichi Goto, Fusao Kimizuka +2 more 1993-03-30
5183804 Polypeptide comprising repeated cell-adhesive core sequences Ikuo Saiki, Norio Nishi, Seiichi Tokura 1993-02-02
5161880 Light source device 1992-11-10
4873092 Slow-releasing preparation Seiichi Tokura, Shinichiro Nishimura, Hiroshi Seo 1989-10-10
4606857 Muramyldipeptide derivatives Akira Hasegawa, Yuichi Yamamura 1986-08-19
4543253 Solidified pharmaceutical composition comprising cell wall skeleton Yuichi Yamamura, Katsusuke Ennyu, Osamu Aoki 1985-09-24
4369178 Glucosamine peptide derivatives, their production and use Yuichi Yamamura, Shigeru Kobayashi 1983-01-18
4314998 6-Deoxyglucosamine-peptide derivatives, their production and use Yuichi Yamamura, Akira Hasegawa, Shigeru Kobayashi 1982-02-09
4289856 Process for preparing non-yellowing integral-skinned polyurethane foam using a polyol having a functionality of 4 to 8 Masaki Yamamoto 1981-09-15
4243663 Glycolipid compositions for transplanted tumor immunotherapy Yuichi Yamamura 1981-01-06
4191778 Aqueous immunoregulatory agent Yuichi Yamamura, Kazuhisa Sugimura, Hiroshi Morimoto, Isuke Imada, Masazumi Watanabe 1980-03-04