HY

Hisayuki Yazawa

AC Alps Electric Co.: 39 patents #13 of 2,177Top 1%
Tdk: 19 patents #283 of 3,796Top 8%
AC Alps Alpine Co.: 3 patents #95 of 525Top 20%
Overall (All Time): #37,459 of 4,157,543Top 1%
61
Patents All Time

Issued Patents All Time

Showing 51–61 of 61 patents

Patent #TitleCo-InventorsDate
6731458 Thin film magnetic head with upper core and lower core layers reducing side-fringing Toshinori Watanabe 2004-05-04
6721130 Thin-film magnetic head having thin coil-layer and method for manufacturing the thin-film magnetic head Kiyoshi Kobayashi, Hideki Gochou, Toru Takahashi 2004-04-13
6704162 Thin-film head for reducing track width, preventing write fringing and reducing saturation Kiyoshi Sato, Hideki Gochou, Kiyoshi Kobayashi, Akira Koyama, Minoru Yamada 2004-03-09
6697221 Perpendicular magnetic recording head with inverted trapezoidal main magnetic pole layer Kiyoshi Sato, Toshinori Watanabe, Hideki Gochou, Kiyoshi Kobayashi, Akira Koyama 2004-02-24
6687084 Perpendicular magnetic recording head having main magnetic pole layer formed on high-flatness surface of yoke layer, and method of manufacturing the head Toru Takahashi, Hideki Gochou, Kiyoshi Kobayashi, Minoru Yamada, Kiyoshi Sato +1 more 2004-02-03
6650502 Thin-film magnetic head capable of narrowing track width and method of manufacturing the same Naruaki Oki 2003-11-18
6638596 Thin film magnetic head using soft magnetic film having soft magnetic characteristics of high resistivity, low coercive force, and high saturation magnetic flux density Mitsuhiro Gotoh, Yoshihiro Kanada, Mitsuo Kawasaki 2003-10-28
6636381 Thin-film magnetic head for reducing track width, preventing write fringing and reducing magnetic saturation, and production method thereof Kiyoshi Sato, Hideki Gochou, Kiyoshi Kobayashi, Akira Koyama, Minoru Yamada 2003-10-21
6600629 Thin film magnetic head having gap layer made of nip and method of manufacturing the same Yoshihiro Kanada 2003-07-29
6560076 Thin-film magnetic write head Yoshihiro Kanada 2003-05-06
6449122 Thin-film magnetic head including soft magnetic film exhibiting high saturation magnetic flux density and low coercive force Yoshihiro Kanada, Hiroaki Nakajima 2002-09-10