HA

Hideki Akasaka

NI Nikon: 13 patents #314 of 2,493Top 15%
NK Nippon Kogaku K.K.: 4 patents #88 of 382Top 25%
Overall (All Time): #280,661 of 4,157,543Top 7%
17
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5680373 Reproducing apparatus for magneto-optical recording device Masatoshi Sato, Jun Saito 1997-10-21
5539709 Magnetooptical recording method and apparatus using multi-layered media Masatoshi Sato, Jun Saito 1996-07-23
5475657 Overwrite capable magnetooptial recording apparatus Masatoshi Sato, Jun Saito 1995-12-12
5458987 Multilayered magnetooptical recording medium Masatoshi Sato, Jun Saito 1995-10-17
5440531 Magneto-optical reproducing method Masatoshi Sato, Jun Saito 1995-08-08
5389455 Over-write capable magnetooptical recording medium having C/N ratio exceeding 53 dB Jun Saito, Tetsuo Hosokawa, Akio Okamuro, Hiroyuki Matsumoto, Haruhisa Iida +1 more 1995-02-14
5367507 Over write capable magnetooptical recording method, and magnetooptical recording apparatus and medium used therefor Masatoshi Sato, Jun Saito 1994-11-22
5293291 Optical integrated device for magneto-optical reproducing head Hiroshi Ohki, Masaaki Doi 1994-03-08
5239524 Over write capable magnetooptical recording method, and magnetooptical recording apparatus and medium used therefor Masatoshi Sato, Jun Saito 1993-08-24
5204193 Recording magnetooptical recording medium Masatoshi Sato 1993-04-20
5140654 Optical waveguide device for polarization rotation Hiroshi Ohki, Masaaki Doi 1992-08-18
5014252 Over write capable magnetooptical recording method using two beams, and magnetooptical recording apparatus therefor Masatoshi Sato 1991-05-07
4855975 Over write capable magnetooptical recording method using two beams, and magnetooptical recording apparatus therefor Masatoshi Sato 1989-08-08
4853912 Process and apparatus for simultaneous erasure and recording in magneto-optical recording Masatoshi Sato 1989-08-01
4753853 Double-layered magnetooptical recording medium Masatoshi Sato 1988-06-28
4433901 All solid type electrochromic display element Yosuke Takahashi, Toshikatsu Kasui, Tatsuo Niwa, Tsuneo Sukegawa 1984-02-28
4350414 All solid state electrochromic device Yosuke Takahashi, Toshikatsu Kasui, Tatsuo Niwa 1982-09-21