NH

Norio Hirokawa

SD Showa Denko: 2 patents #110 of 593Top 20%
KC Kanegafuchi Chemical Industry Co.: 1 patents #86 of 179Top 50%
KK Kanegafuchi Kagaku Kogyo: 1 patents #368 of 691Top 55%
KA Kaneka: 1 patents #886 of 1,525Top 60%
📍 Chichibu, JP: #46 of 144 inventorsTop 35%
Overall (All Time): #1,049,685 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
6160096 Regenerated collagen fiber and method of manufacturing the same Shinichi Sakashita, Mamoru Tsugawa, Masaoki GOTO, Kunihiko Matsumura 2000-12-12
5378786 Spherical vinyl chloride granules for paste molding Kyoji Uku, Masahiro Ueda, Tetsuya Murakami 1995-01-03
4948618 Process for tempering edible plastic fat products Satoshi Imai, Hisashi Morikawa 1990-08-14
4435210 Refining agent of molten metal and methods for producing the same Tsuneo Kawachi, Hiroshi Saito, Ryoichi Yoshimura 1984-03-06
4225348 Lime bearing agent for use in refining of ferrous melt Ryoichi Yoshimura, Munetaka Honda 1980-09-30