TO

Takashi Onouchi

SD Showa Denko: 1 patents #231 of 593Top 40%
SK Showa Denko K.K.: 1 patents #940 of 1,736Top 55%
Overall (All Time): #2,321,523 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4898781 Water-soluble microcapsules Hironori Sugai, Kazuo Sekiguchi, Yoshikazu Hosoda, Eiichi Yoshida 1990-02-06
4480037 Alkaline protease and preparation method thereof Fiji Ichishima 1984-10-30