RH

Ryozo Hamana

ML Mitsubishi Petrochemical Company Limited: 4 patents #89 of 670Top 15%
MC Mitsubishi Chemical: 1 patents #1,511 of 3,022Top 50%
📍 Ami, JP: #24 of 91 inventorsTop 30%
Overall (All Time): #1,044,182 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
6388154 Process for producing styrene Shohei Suzuki, Syuji Obayashi, Makoto Takiguchi, Hisashi Fujita 2002-05-14
5023383 Method for producing aromatic alcohol Masashi Inaba, Hideyuki Hase, Tatsuro Ashizawa 1991-06-11
4605742 Process for the production of piperidine Shoichiro Mori, Tadamichi Aoki, Yutaka Nomura 1986-08-12
4598159 Process for producing furfurylamine and/or tetrahydrofurfurylamine Tadashi Ayusawa, Shoichiro Mori, Tadamichi Aoki 1986-07-01
4544749 Process for production of piperidine Tadashi Ayusawa, Tadamichi Aoki 1985-10-01