Issued Patents 1994
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5353278 | Magneto-optical disk and method of manufacturing the same | Yoshiteru Murakami, Hiroyuki Katayama, Akira Takahashi, Kenji Ohta, Hirotaka Toki | 1994-10-04 |
| 5347510 | Method of manufacturing a master plate where its guide groove has an inclined angle | Junji Hirokane, Hiroyuki Katayama, Michinobu Mieda, Kenji Ohta | 1994-09-13 |
| 5343448 | External magnetic field device for a magnetooptical information recording and reproducing apparatus | Tomoyuki Miyake, Hiroyuki Katayama, Takahiro Miyake, Kenji Ohta, Shozo Kobayashi | 1994-08-30 |
| 5338646 | Optical memory device having an improved light reflection or optical memory layer | Tomoyuki Miyake, Hiroyuki Katayama, Kazuo Van, Kenji Ohta | 1994-08-16 |
| 5336531 | Magneto-optical disk and manufacturing methods thereof | Hiroyuki Katayama, Kenji Ohta | 1994-08-09 |
| 5328740 | Magneto-optical recording medium and method for processing the surface | Yoshiteru Murakami, Hiroyuki Katayama, Kenji Ohta | 1994-07-12 |
| 5313445 | Reproducing apparatus with suspension supporting a floating-type head with a bevelled slider | Katsuo Wada, Miyuki Onishi, Tomoyuki Miyake, Takashi Iwaki, Takeshi Yamaguchi | 1994-05-17 |
| 5313357 | Magnetic storage device and manufacturing method thereof | Kenji Ohta, Tetsurou Muramatsu | 1994-05-17 |
| 5305254 | Magneto-optic memory device | Yoshiteru Murakami, Ichiro Hiramatsu, Akira Takahashi, Kenji Ohta, Kazuo Van +1 more | 1994-04-19 |
| 5303100 | Magnetic disk device with floating-type magnetic head | Hiroyuki Katayama, Tomoyuki Miyake, Kenji Ohta | 1994-04-12 |
| 5278810 | Magneto-optical recording medium whereon recording is carried out with an overwriting function | Akira Takahashi, Hiroyuki Katayama, Kenji Ohta | 1994-01-11 |