TD

Tsugihiro Doi

HM Hitachi Maxell: 15 patents #36 of 1,211Top 3%
Overall (All Time): #322,608 of 4,157,543Top 8%
15
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
9231272 Electrode and method for producing the same Hiroyuki Mitsuhashi 2016-01-05
7593177 Recording/reproducing method of magnetic tape Masao Okafuji, Tetsutaro Inoue, Hiroyuki Mitsuhashi, Seigi Kawarai, Sadamu Kuse 2009-09-22
7545597 Recording/reproducing method of magnetic tape Masao Okafuji, Tetsutaro Inoue, Hiroyuki Mitsuhashi, Seigi Kawarai, Sadamu Kuse 2009-06-09
7522381 Recording medium built-in cartridge and cartridge built-in package Teruo Sogabe 2009-04-21
7494728 Magnetic tape and magnetic tape cartridge Sadamu Kuse, Tetsutaro Inoue, Mikio Kishimoto 2009-02-24
7445858 Magnetic recording medium using magnetic powder having a core portion and an outer layer portion including a rare earth element and magnetic recording cassette Sadamu Kuse, Tetsutaro Inoue, Mikio Kishimoto, Yuji Sasaki, Hideaki Watanabe 2008-11-04
7309040 Magnetic tape cartridge Teruo Sogabe 2007-12-18
7291409 Magnetic recording medium using magnetic powder having a core portion and an outer layer portion including a rare earth element and magnetic recording cassette Sadamu Kuse, Tetsutaro Inoue, Mikio Kishimoto, Yuji Sasaki, Hideaki Watanabe 2007-11-06
7267896 Magnetic tape and magnetic tape cartridge Sadamu Kuse, Tetsutaro Inoue, Mikio Kishimoto, Yuji Sasaki, Hideaki Watanabe 2007-09-11
7259935 Magnetic tape including an intermediate layer consisting essentially of a binder Tetsutaro Inoue 2007-08-21
7253988 Recording/reproducing method of magnetic tape Masao Okafuji, Tetsutaro Inoue, Hiroyuki Mitsuhashi, Seigi Kawarai, Sadamu Kuse 2007-08-07
7212372 Magnetic tape and magnetic tape cartridge Ken Yoshimura 2007-05-01
7170709 Recording/reproducing method of magnetic tape Masao Okafuji, Tetsutaro Inoue, Hiroyuki Mitsuhashi, Seigi Kawarai, Sadamu Kuse 2007-01-30
5079096 Magnetic recording medium comprising a substrate coated with a primer which is a protonic acid doped polyaniline polymer Akira Miyake, Minoru Ezoe, Akira Ohtani 1992-01-07
4828925 Magnetic disc Akira Miyake, Hitoshi Nagatani, Kunio Mizushima, Akito Sakemoto 1989-05-09