Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12148477 | Memory system having semiconductor memory device that performs verify operations using various verify voltages | Masanobu Shirakawa, Kenta Yasufuku | 2024-11-19 |
| 11804267 | Memory system having semiconductor memory device that performs verify operations using various verify voltages | Masanobu Shirakawa, Kenta Yasufuku | 2023-10-31 |
| 11410732 | Memory system having semiconductor memory device that performs verify operations using various verify voltages | Masanobu Shirakawa, Kenta Yasufuku | 2022-08-09 |
| 10978157 | Memory system having semiconductor memory device that performs verify operations using various verify voltages | Masanobu Shirakawa, Kenta Yasufuku | 2021-04-13 |
| 10600485 | Memory system having semiconductor memory device that performs verify operations using various verify voltages | Masanobu Shirakawa, Kenta Yasufuku | 2020-03-24 |
| 10574272 | Memory system | Yuta Kumano, Kazumasa Yamamoto, Hironori Uchikawa | 2020-02-25 |
| 10276243 | Semiconductor memory device and writing operation method thereof in which first memory cells of a page that are in a first group of contiguous columns are programmed and verified separately from second memory cells of the same page that are in a second group of contiguous columns that does not overlap with the first group | Masanobu Shirakawa, Kenta Yasufuku | 2019-04-30 |
| 10089241 | Memory system | Tokumasa Hara, Osamu Torii, Kiichi Tachi, Susumu Tamon, Shigefumi Irieda +3 more | 2018-10-02 |
| 10061691 | Write data optimization methods for non-volatile semiconductor memory devices | Kejen Lin, Tokumasa Hara, Hironori Uchikawa, Juan Shi, Sho Kodama +1 more | 2018-08-28 |
| 9911498 | Semiconductor memory device and writing operation method thereof | Masanobu Shirakawa, Kenta Yasufuku | 2018-03-06 |
| 9721666 | Memory system | Masanobu Shirakawa, Kenta Yasufuku | 2017-08-01 |
| 9264070 | Memory controller, memory system, and memory write method | Tatsuhiro Suzumura | 2016-02-16 |
| 8879349 | Storage device | Kenichiro Yoshii, Ikuo Magaki, Naoto Oshiyama, Tokumasa Hara, Ryo Yamaki +6 more | 2014-11-04 |
| 8812774 | Memory system and computer program product | Shigehiro Asano, Shinichi Kanno, Kazuhiro Fukutomi | 2014-08-19 |
| 8751896 | Semiconductor storage device, method of controlling the same, and error correction system | — | 2014-06-10 |
| 8499216 | Semiconductor storage device, method of controlling the same, and error correction system | — | 2013-07-30 |
| 8418028 | Chien search device and Chien search method | — | 2013-04-09 |
| 8381066 | Semiconductor storage device, method of controlling the same, and error correction system | — | 2013-02-19 |
| 8312348 | Error correcting device and error correcting method | — | 2012-11-13 |
| 8176389 | Decoder device and method for decoding data stored in storage medium | Koji Horisaki | 2012-05-08 |
| 8086933 | Semiconductor storage device, method of controlling the same, and error correction system | — | 2011-12-27 |