Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12298826 | Semiconductor memory device and memory system | Akio SUGAHARA, Naoya Tokiwa | 2025-05-13 |
| 12197732 | Memory system | Kenta SHIBASAKI, Yoshihiko Shindo, Akio SUGAHARA, Shigeki Nagasaka, Dai Nakamura +1 more | 2025-01-14 |
| 12183405 | Semiconductor memory device and memory system | Mitsuhiro Abe, Mitsuaki Honma | 2024-12-31 |
| 12034441 | Semiconductor device | Masaru Koyanagi, Yutaka Takayama | 2024-07-09 |
| 12020772 | Semiconductor memory device with a variable delay for a data select signal and a counter for counting a selected data signal during a test operation | Mitsuhiro Abe, Norichika ASAOKA | 2024-06-25 |
| RE49783 | Nonvolatile semiconductor memory device and memory system having termination circuit with variable resistor | Masaru Koyanagi | 2024-01-02 |
| 11769535 | Semiconductor memory device | — | 2023-09-26 |
| 11621712 | Semiconductor device | Masaru Koyanagi, Yutaka Takayama | 2023-04-04 |
| 11450390 | Semiconductor integrated circuit and semiconductor storage device | Fumiya Watanabe, Masaru Koyanagi, Yutaka Shimizu, Kei Shiraishi, Mikihiko Ito | 2022-09-20 |
| 11218141 | Correction circuit | Masaru Koyanagi | 2022-01-04 |
| 11211130 | Semiconductor device | Masaru Koyanagi, Mikihiko Ito, Kei Shiraishi, Fumiya Watanabe | 2021-12-28 |
| 11121710 | Semiconductor device | Masaru Koyanagi, Yutaka Takayama | 2021-09-14 |
| 11087852 | Semiconductor storage device and memory system | Yumi Takada, Kenta SHIBASAKI, Yousuke Hagiwara | 2021-08-10 |
| 10847232 | Semiconductor memory device | Kei Shiraishi, Masaru Koyanagi, Mikihiko Ito, Yumi Takada, Satoshi Inoue +4 more | 2020-11-24 |
| 10784866 | Semiconductor device | Masaru Koyanagi, Yutaka Takayama | 2020-09-22 |
| 10679710 | Semiconductor device | Masaru Koyanagi, Mikihiko Ito, Kei Shiraishi, Fumiya Watanabe | 2020-06-09 |
| 10530350 | Correction circuit | Masaru Koyanagi | 2020-01-07 |
| 10482977 | Semiconductor memory device | Kei Shiraishi, Masaru Koyanagi, Mikihiko Ito | 2019-11-19 |
| 10461750 | Semiconductor device | Masaru Koyanagi, Yutaka Takayama | 2019-10-29 |
| 10276218 | Semiconductor memory device | Mami Kakoi, Shinya Okuno | 2019-04-30 |
| 9792983 | Nonvolatile semiconductor memory device and memory system | Masaru Koyanagi | 2017-10-17 |
| 9679617 | Amplifier | Yohei Yasuda, Hiromitsu Komai, Kensuke Yamamoto, Masaru Koyanagi | 2017-06-13 |
| 9230671 | Output circuit and semiconductor storage device | Masaru Koyanagi | 2016-01-05 |