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Hiroko Tonai — 2 Patents

Pfizer: 2 patents #2,085 of 5,153Top 45%

Taketoyo, JP: #4 of 8 inventorsTop 50%

Overall (All Time): #1,709,992 of 4,157,543Top 45%

2 Patents All Time

Hiroko Tonai has been granted 2 US patents while listed as an inventor at Pfizer. The first was granted in 2001 and the most recent in August 2002. Hiroko Tonai ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Hiroko Tonai in Taketoyo, JP.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
6440709	Production of isochroman compounds by culturing Penicillium	Hideo Hirai, Toshio Ichiba	2002-08-27	$152,025,000
6177458	Isochroman compounds and their production process	Hideo Hirai, Toshio Ichiba	2001-01-23	$1,550,397,000

Hiroko Tonai — 2 Patents

Issued Patents All Time

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