ET

Eisei Togawa

HI Hitachi: 10 patents #4,206 of 28,497Top 15%
HI Hiatchi: 1 patents #1 of 84Top 2%
Overall (All Time): #471,188 of 4,157,543Top 15%
11
Patents All Time

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDate
6690544 Magnetic head and magnetic head manufacturing method Atsuko Okawa, Yasuo Hira, Hirotaka Imayama, Masayasu Fujisawa, Saburou Suzuki +5 more 2004-02-10
6504680 Magnetic head and magnetic head manufacturing method Atsuko Okawa, Yasuo Hira, Hirotaka Imayama, Masayasu Fujisawa, Saburou Suzuki +5 more 2003-01-07
6278582 Magnetic head and magnetic head manufacturing method Atsuko Okawa, Yasuo Hira, Hirotaka Imayama, Masayasu Fujisawa, Saburou Suzuki +5 more 2001-08-21
6198601 Thin film magnetic head having non-linear tapered rails Yasuo Hira, Tamaki Toba, Hirotaka Imayama, Atsuko Ohkawa, Masayasu Fujisawa +5 more 2001-03-06
5910864 Thin film magnetic head having non-linear rails Yasuo Hira, Tamaki Toba, Hirotaka Imayama, Atsuko Ohkawa, Masayasu Fujisawa +5 more 1999-06-08
5567333 Thin film magnetic head, process for production thereof Yasuo Hira, Tamaki Toba, Hirotaka Imayama, Atsuko Ohkawa, Masayasu Fujisawa +5 more 1996-10-22
5430591 Negative pressure flying head slider having siderails with narrow width portion Yoshinori Takeuchi, Kenji Mori, Masaaki Matsumoto, Hiroshi Agari, Jyousei Shimizu +7 more 1995-07-04
5329689 Process for producing magnetic head slider Kasufumi Azuma, Hideki Sonobe, Kazuo Nate, Akiko Mizushima, Harunobu Saito +1 more 1994-07-19
5241440 Thin film magnetic head and manufacturing method therefor Eizi Ashida, Moriaki Fuyama, Hideki Yamazaki, Shinji Narishige, Makoto Morijiri +3 more 1993-08-31
4841624 Method of producing a thin film magnetic head Saburo Suzuki, Kenji Sugimoto, Shunichiro Kuwatsuka 1989-06-27
4841402 Thin film magnetic head and method of manufacture Tadashi Imanaka, Masayuki Takagi, Harunobu Saito, Sadanori Nagaike, Masaki Ohura 1989-06-20