Ibaraki
Japan
11
2009-02-24
The entities that hold a legal rights for patent applications filed by inventor Doi Tsugihiro:
Tsugihiro Doi from Ibaraki, JP has applied for patents for these inventions. The list has both pending applications and granted patents:
Magnetic tape and magnetic tape cartridge
#2 | 2007-12-13Recording/reproducing method of magnetic tape
#3 | 2007-09-11Magnetic tape and magnetic tape cartridge
#4 | 2007-07-12Magnetic recording medium using magnetic powder having a core portion and an outer layer portion including a rare earth element and magnetic recording cassette
#5 | 2007-05-03Recording/reproducing method of magnetic tape
#6 | 2007-04-19Recording/reproducing method of magnetic tape
#7 | 2006-09-21Recording medium built-in cartridge and cartridge built-in package
#8 | 2006-03-02Magnetic tape cartridge
#9 | 2005-12-15Magnetic recording medium using magnetic powder having a core portion and an outer layer portion including a rare earth element and magnetic recording cassette
#10 | 2005-11-17Recording/reproducing method of magnetic tape
#11 | 2005-06-30Magnetic tape including an intermediate layer consisting essentially of a binder
6097260 ⎘