Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Yuji Yamauchi — 7 Patents

Pfizer: 6 patents #865 of 5,153Top 20%
Handa, JP: #53 of 266 inventorsTop 20%
Overall (All Time): #680,018 of 4,157,543Top 20%
7 Patents All Time
Yuji Yamauchi has been granted 7 US patents while listed as an inventor at Pfizer. The first was granted in 1996 and the most recent in February 2001. Yuji Yamauchi ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list Yuji Yamauchi in Handa, JP.

Patents per Year

Patents granted per year, 1996 to 2001Bar chart with a peak of 3 patents in 1999.peak 31996: 1 patents19961997: 1 patents19971998: 1 patents19981999: 3 patents19992001: 1 patents2001

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6187568 Macrocyclic lactone compounds and their production process Hiroyuki Nishida, Taisuke Inagaki, Yasuhiro Kojima, Nakao Kojima 2001-02-13 $616,695,000
6001998 Macrocyclic lactone compounds and their production process Hiroyuki Nishida, Taisuke Inagaki, Yasuhiro Kojima, Nakao Kojima 1999-12-14 $253,903,000
5942619 Quinolone compounds for the treatment of disorders caused by helicobacter pylori Koenraad A. Dekker, Liang H. Huang, Taisuke Inagaki, Nakao Kojima, Yasuhiro Kojima 1999-08-24 $581,283,000
5861518 Phthalide compounds and their production process Koenraad A. Dekker, Taisuke Inagaki, Shinichi Sakemi, Nakao Kojima 1999-01-19
5801023 Antiparasitic pyrrolobenzoxazine compounds Yasuhiro Kojima, Nakao Kojima, Bernard Bishop 1998-09-01 $196,047,000
5674732 Rapamycin producer Hiroyuki Nishida, Tatsuo Sakakibara, Taisuke Inagaki, Yasuhiro Kojima, Nakao Kojima 1997-10-07 $233,003,000
5494820 Streptomyces braegensis strain and its cultivation in a process for producing C.sub.9 -desoxo-FK-520 Walter P. Cullen, Mark A. Guadliana, Liang H. Huang, Keiji Kaneda, Nakao Kojima +3 more 1996-02-27 $126,534,000