HT

Hirofumi Tsutsumi

HI Hitachi: 2 patents #13,388 of 28,497Top 50%
KS Kobe Steel: 2 patents #616 of 1,773Top 35%
DC Du Pont-Mitsui Fluorochemicals Co.: 1 patents #25 of 54Top 50%
MC Murakashi Lime Industry Co.: 1 patents #6 of 10Top 60%
NC Nippon Hodo Co.: 1 patents #8 of 36Top 25%
NO Nof: 1 patents #246 of 561Top 45%
Overall (All Time): #861,888 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
8268231 Treatment method for high-temperature exhaust gas Yutaka Miyakawa, Tadashi Yaso 2012-09-18
8088194 Method for producing hot briquette iron using high-temperature reduced iron and method and apparatus for controlling temperature of reduced iron for hot forming Yutaka Miyakawa 2012-01-03
7091870 Security system and method of security service business Keiko Nakashige, Seiji Tanaka, Yoshihiro Nishikawa, Yasuaki Takada, Toshihiko Ohta +3 more 2006-08-15
6998067 Method of dusting-preventive treatment of powder having dusting property Teruo Urano, Masatsune Ogura, Tetsuya Shimoda 2006-02-14
6464776 Dusting-inhibited cement composition improved in strength Teruo Urano, Masatsune Ogura, Tetsuya Shimoda 2002-10-15
4891570 Static var compensator with thyristor control Tomoharu Nakamura, Hiroyuki Irokawa, Syoichi Mashiko, Hidehiko Shimamura 1990-01-02