RO

Ryozo Okumura

IC Idemitsu Petrochemical Co.: 3 patents #2 of 81Top 3%
Overall (1994): #8,995 of 165,921Top 6%
3
Patents 1994

Issued Patents 1994

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5349042 Process for producing polycarbonate Shigeki Kuze, Yoshinobu Suwabe 1994-09-20
5349043 Polycarbonate and process for producing the same Shigeki Kuze, Noriyuki Kunishi 1994-09-20
5306802 Polycarbonate copolymer and method for production thereof Shigeki Kuze, Noriyuki Kunishi 1994-04-26