Issued Patents All Time
Showing 176–196 of 196 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5216677 | Data reproducing apparatus | Isao Satoh, Yoshihisa Fukushima, Katsumi Murai | 1993-06-01 |
| 5214626 | Information recording/reproducing apparatus for writing on and reading from a rewritable optical disk have tracks divided into a plurality of sectors | Isac Satoh, Yoshihisa Fukushima, Yasushi Azumatani, Hiroshi Hamasaka | 1993-05-25 |
| 5202876 | Optical disc recording-reproducing apparatus in which sector substitution of defective sectors is performed | Isao Satoh, Yoshihisa Fukushima, Yasushi Azumatani, Hiroshi Hamasaka | 1993-04-13 |
| 5173886 | Composite optical disc having both a data read-only area and a data rewritable area, and a recording/reproducing system for use therewith | Isao Satoh, Yoshihisa Fukushima, Makoto Ichinose, Yuzuru Kuroki | 1992-12-22 |
| 5166985 | Method and apparatus for inspecting surface pattern of object | Seiji Hata | 1992-11-24 |
| 5161143 | Information recording-reproducing apparatus for optimizing data transfer | Yoshihisa Fukushima, Isao Satoh, Yasushi Azumatani, Hiroshi Hamasaka | 1992-11-03 |
| 5153885 | Bit error measuring apparatus | Yasushi Azumatani, Isao Satoh, Yoshihisa Fukushima, Hiroshi Hamasaka | 1992-10-06 |
| 5076697 | Apparatus and method for inspecting defect of mounted component with slit light | Daisuke Katsuta, Seiji Hata | 1991-12-31 |
| 5077720 | Optical information recording and reproducing system and optical disk | Isao Satoh, Makoto Ichinose, Yoshihisa Fukushima, Yuzuru Kuroki, Yasushi Azumatani | 1991-12-31 |
| 5073887 | Optical disk recording and reading system with directory data access mechanism | Isao Satoh, Makoto Ichinose, Yoshihisa Fukushima, Yuzuru Kuroki | 1991-12-17 |
| 5023854 | Disc having a data read-only area and a data recording arm and a recording reproducing system therefor | Isao Satoh, Yoshihisa Fukushima, Makoto Ichinose, Yuzuru Kuroki | 1991-06-11 |
| 4984230 | Rewritable optical disk with defective-sector substitution arrangement and optical information recording and reproducing system | Isao Satoh, Yoshihisa Fukushima, Yasushi Azumatani | 1991-01-08 |
| 4969139 | Optical information recording and reproducing apparatus having an improved detection system for detecting fouling of a disk or an internal optical system | Yasushi Azumatani, Isao Satoh, Makoto Ichinose, Yoshihisa Fukushima, Yuzuru Kuroki | 1990-11-06 |
| 4964094 | Optical disk | Isao Satoh, Makoto Ichinose, Yoshihisa Fukushima, Yuzuru Kuroki, Yasushi Azumatani | 1990-10-16 |
| 4949326 | Optical information recording and reproducing system using optical disks having an error correction function | Isao Satoh, Makoto Ichinose, Yoshihisa Fukushima, Yuzuru Kuroki, Yasushi Azumatani | 1990-08-14 |
| 4833663 | Information recording/reproducing apparatus for handling defective sectors on an optical disk | Isao Satoh, Makoto Ichinose, Yoshihisa Fukushima, Yuzuru Kuroki | 1989-05-23 |
| 4823333 | Optical disk duplicating apparatus using sector data identification information for controlling duplication | Isao Satoh, Yoshihisa Fukushima, Makoto Ichinose, Yuzuru Kuroki | 1989-04-18 |
| 4821254 | Information recording and reproducing apparatus which detects deterioration of a medium in each sector before recording | Isao Satoh, Yoshihisa Fukushima, Makoto Ichinose, Yuzuru Kuroki | 1989-04-11 |
| 4779002 | Method and apparatus for measuring optical cutting beam with parallel beam referencing | Seiji Hata | 1988-10-18 |
| 4769804 | Optical data recording and reproducing apparatus with erase function diagnosis | Isao Satoh, Makoto Ichinose, Yoshihisa Fukushima, Yuzuru Kuroki | 1988-09-06 |
| 4742517 | Interleaving circuit | Isao Satoh, Tatsuo Sugimura | 1988-05-03 |