Issued Patents All Time
Showing 51–57 of 57 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5243581 | Data recording/reproducing apparatus having plural optical disk drives operating in parallel | Takagi Yuji, Isao Satoh, Yoshihisa Fukushima, Yasushi Azumatani | 1993-09-07 |
| 5237553 | Data recording and reproducing apparatus having a plurality of operating modes | Yoshihisa Fukushima, Isao Satoh, Yuji Takagi, Yasushi Azumatani | 1993-08-17 |
| 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, Yuji Takagi, Yasushi Azumatani | 1993-05-25 |
| 5202876 | Optical disc recording-reproducing apparatus in which sector substitution of defective sectors is performed | Yuji Takagi, Isao Satoh, Yoshihisa Fukushima, Yasushi Azumatani | 1993-04-13 |
| 5184341 | Information recording method having successive data write and data verify operations | Isao Satoh, Yoshihisa Fukushima | 1993-02-02 |
| 5161143 | Information recording-reproducing apparatus for optimizing data transfer | Yoshihisa Fukushima, Isao Satoh, Yuji Takagi, Yasushi Azumatani | 1992-11-03 |
| 5153885 | Bit error measuring apparatus | Yasushi Azumatani, Isao Satoh, Yoshihisa Fukushima, Yuji Takagi | 1992-10-06 |