KA

Koichi Aso

SO Sony: 16 patents #2,631 of 25,231Top 15%
Overall (All Time): #303,240 of 4,157,543Top 8%
16
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5400307 Magneto-optical recording medium with stacked layer structure Yoshitaka Ochiai, Shunichi Hashimoto 1995-03-21
5331491 High-density magnetic recording and reproducing head Masatoshi Hayakawa, Yasunari Sugiyama 1994-07-19
5322588 Method for producing KTIOPO4 single crystal Kazutaka Habu, Tsutomu Okamoto, Koichi Tatsuki 1994-06-21
5266418 Magnetic recording medium Kazuhiko Hayashi, Akihiko Okabe, Masatoshi Hayakawa 1993-11-30
5182690 Fe-N-based soft magnetic thin films and magnetic heads using such films Kenji Katori, Masatoshi Hayakawa, Kazuhiko Hayashi, Kazuo Kajiwara 1993-01-26
5057380 Soft magnetic thin films of alloys of FeCoNi or FeCoDy and laminates comprising alternate layers of face centered cubic and body centered cubic crystal structure Kazuhiko Hayashi, Masatoshi Hayakawa, Kenji Katori 1991-10-15
4796241 Device for producing a high frequency modulation magnetic field used in magneto-optical recording Masatoshi Hayakawa, Takehiro Nagaki, Hiroshi Yamanoi 1989-01-03
4707417 Magnetic composite film Masatoshi Hayakawa, Yoshitaka Ochiai, Hideki Matsuda, Kazuhiko Hayashi, Wataru Ishikawa +1 more 1987-11-17
4640871 Magnetic material having high permeability in the high frequency range Kazuhiko Hayashi, Yoshitaka Ochiai, Masatoshi Hayakawa, Hideki Matsuda, Wataru Ishikawa +1 more 1987-02-03
4639278 Method of manufacturing an amorphous magnetic alloy Yoshimi Makino, Yoshitaka Ochiai, Satoru Uedaira, Kazuhide Hotai, Masatoshi Hayakawa 1987-01-27
4475962 Annealing method for amorphous magnetic alloy Masatoshi Hayakawa, Satoru Uedaira, Yoshitaka Ochiai, Hideki Matsuda, Kazuhide Hotai +1 more 1984-10-09
4473415 Method of manufacturing an amorphous magnetic alloy Yoshitaka Ochiai, Yoshimi Makino, Satoru Uedaira, Masatoshi Hayakawa, Kazuhide Hotai 1984-09-25
4444602 Method of manufacturing amorphous magnetic alloy ribbon and use for magnetostriction delay lines Yoshimi Makino, Yoshitaka Ochiai, Satoru Uedaira, Masatoshi Hayakawa, Kazuhide Hotai 1984-04-24
4379004 Method of manufacturing an amorphous magnetic alloy Yoshimi Makino, Masatoshi Hayakawa, Satoru Uedaira, Shigeyasu Ito, Kazuhide Hotai 1983-04-05
4311539 Method of manufacturing a high permeability amorphous magnetic alloy Satoru Uedaira, Shigeyasu Ito, Masatoshi Hayakawa 1982-01-19
4190438 Amorphous magnetic alloy Satoru Uedaira, Shigeyasu Ito, Hidemasa Tamura, Yoshimi Makino 1980-02-26