HU

Hiroshi Umezaki

SC Sumitomo Chemical: 13 patents #331 of 4,033Top 9%
HI Hitachi: 11 patents #3,813 of 28,497Top 15%
IBM: 8 patents #13,150 of 70,183Top 20%
HG HGST: 3 patents #567 of 1,677Top 35%
Overall (All Time): #99,220 of 4,157,543Top 3%
35
Patents All Time

Issued Patents All Time

Showing 26–35 of 35 patents

Patent #TitleCo-InventorsDate
4578775 Magnetic bubble memory device Ryo Suzuki, Yutaka Sugita, Teruaki Takeuchi, Naoki Kodama, Masatoshi Takeshita 1986-03-25
4556582 Method of fabricating magnetic bubble memory device Ryo Imura, Tadashi Ikeda, Teruaki Takeuchi, Ryo Suzuki, Yutaka Sugita 1985-12-03
4502916 Process for forming fine patterns Naoki Koyama, Yoozi Maruyama, Yutaka Sugita 1985-03-05
4503517 Magnetic bubble memory device Naoki Koyama, Yooji Maruyama, Yutaka Sugita 1985-03-05
4498931 Pigmented aluminum oxide powder and method of producing the same Hidekimi Kadokura 1985-02-12
4460412 Method of making magnetic bubble memory device by implanting hydrogen ions and annealing Ryo Imura, Tadashi Ikeda, Ryo Suzuki, Nagatugu Koiso, Teruaki Takeuchi +1 more 1984-07-17
4415262 Photomask Naoki Koyama, Youji Maruyama, Norikazu Tsumita, Yutaka Sugita 1983-11-15
4344153 Magnetic bubble memory device and method of fabricating the same Hideki Nishida, Hirozi Yamada, Yutaka Sugita, Norikazu Tsumita 1982-08-10
4288283 Method of forming a microscopic pattern Hideki Nishida, Norikazu Tsumita, Hirozi Yamada, Katsuhiro Kaneko, Nagatugu Koiso 1981-09-08
4262054 Magnetic bubble memory device Hideki Nishida, Hirozi Yamada, Yutaka Sugita, Katsuhiro Kaneko, Nagatugu Koiso +1 more 1981-04-14