KH

Keizo Hirakawa

AC Asahi Kasei Kogyo Co.: 2 patents #303 of 1,395Top 25%
Overall (All Time): #2,368,352 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4357276 Process for separation of indole using X and Y type zeolites Kenji Takasa, Hiroji Nishimaru, Makoto Honda 1982-11-02
4197251 Process for producing octamethylcyclotetrasiloxane Makoto Honda 1980-04-08