Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7425378 | Magnetic recording medium | Katsuhiko Yamazaki, Takashi Handa, Akinori Nishizawa | 2008-09-16 |
| 7288210 | Method for manufacturing magnetic paint, method for manufacturing non-magnetic paint and magnetic recording medium | Katsuhiko Yamazaki | 2007-10-30 |
| 7160481 | Method for manufacturing magnetic paint, and magnetic recording medium | Katsuhiko Yamazaki, Hiroyuki Tanaka | 2007-01-09 |
| 6855414 | Magnetic recording medium | Katsuhiko Yamazaki | 2005-02-15 |
| 6475613 | Magnetic recording medium | Akira Saitoh | 2002-11-05 |
| 5784911 | Apparatus for manufacturing a welded pipe | Yuji Hashimoto, Takaaki Toyooka, Motoaki Itatani, Susumu Itatani | 1998-07-28 |
| 5673579 | Welded steel pipe manufacturing apparatus and method | Yuuji Hashimoto, Takaaki Toyooka, Motoaki Itadani, Susumu Itadani | 1997-10-07 |
| 5599264 | Roller width adjusting device for a divided type molding roller | Yuji Hashimoto, Takaaki Toyooka, Susumu Itatani | 1997-02-04 |
| 5491020 | Molded boards of calcium silicate and process for producing the same | Suguru Hamada | 1996-02-13 |
| 5411793 | Molded boards of calcium silicate and process for producing the same | Suguru Hamada, Masahiro Kawai | 1995-05-02 |
| 5301869 | Machine for manufacturing welded steel pipes and method for handling the machine | Takaaki Toyooka, Yuuji Hashimoto, Susumu Itadani | 1994-04-12 |