Issued Patents All Time
Showing 1–25 of 76 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12310014 | Selection gate separation for 3D NAND | Tomohiko Kitajima | 2025-05-20 |
| 12148475 | Selection gate separation for 3D NAND | Tomohiko Kitajima, Gill Yong Lee, Qian Fu, Sung-Kwan Kang, Takehito Koshizawa +1 more | 2024-11-19 |
| 12142475 | Sequential plasma and thermal treatment | Ning Li, Shuaidi Zhang, Mihaela Balseanu, Qi Gao, Rajesh Prasad +3 more | 2024-11-12 |
| 11930637 | Confined charge trap layer | Tomohiko Kitajima, Mihaela Balseanu | 2024-03-12 |
| 11910614 | Three dimensional semiconductor device and method of forming the same | Chang-Sup Lee, Phil Ouk Nam, Sung Yun LEE | 2024-02-20 |
| 11818877 | Three-dimensional dynamic random access memory (DRAM) and methods of forming the same | Tomohiko Kitajima, Sung-Kwan Kang, Fredrick Fishburn, Gill Yong Lee, Nitin K. Ingle | 2023-11-14 |
| 11763856 | 3-D DRAM structure with vertical bit-line | Sung-Kwan Kang, Gill Yong Lee | 2023-09-19 |
| 11749315 | 3D DRAM structure with high mobility channel | Tomohiko Kitajima, Gill Yong Lee, Sanjay Natarajan, Sung-Kwan Kang, Lequn Liu | 2023-09-05 |
| 11594537 | 3-d dram cell with mechanical stability | Tomohiko Kitajima | 2023-02-28 |
| 11587796 | 3D-NAND memory cell structure | Tomohiko Kitajima, Sung-Kwan Kang | 2023-02-21 |
| 11587930 | 3-D DRAM structures and methods of manufacture | Tomohiko Kitajima, Nitin K. Ingle, Sung-Kwan Kang | 2023-02-21 |
| 11545504 | Methods and apparatus for three dimensional NAND structure fabrication | Takehito Koshizawa, Mukund Srinivasan, Tomohiko Kitajima, Sung-Kwan Kang, Gill Yong Lee +1 more | 2023-01-03 |
| 11430801 | Methods and apparatus for three dimensional NAND structure fabrication | Takehito Koshizawa, Mukund Srinivasan, Tomohiko Kitajima, Sung-Kwan Kang, Gill Yong Lee +1 more | 2022-08-30 |
| 11309326 | Vertical semiconductor device | Jo-young Park, Chang-Sup Lee, Se-mee Jang | 2022-04-19 |
| 11296104 | Three dimensional semiconductor device and method of forming the same | Chang-Sup Lee, Phil Ouk Nam, Sung Yun LEE | 2022-04-05 |
| 11295786 | 3D dram structure with high mobility channel | Tomohiko Kitajima, Gill Yong Lee, Sanjay Natarajan, Sung-Kwan Kang, Lequn Liu | 2022-04-05 |
| 11189635 | 3D-NAND mold | Tomohiko Kitajima, Mukund Srinivasan, Sanjay Natarajan | 2021-11-30 |
| 10998329 | Methods and apparatus for three dimensional NAND structure fabrication | Takehito Koshizawa, Mukund Srinivasan, Tomohiko Kitajima, Sung-Kwan Kang, Gill Yong Lee +1 more | 2021-05-04 |
| 10964717 | Methods and apparatus for three-dimensional NAND structure fabrication | Sung-Kwan Kang, Gill Yong Lee, Tomohiko Kitajima | 2021-03-30 |
| 10896728 | Method of writing data in nonvolatile memory device, with divided subpages or subblocks, and method of erasing data in nonvolatile memory device with divided subpages or subblocks | Kohji Kanamori, Yong Seok Kim, Kyung Hwan Lee | 2021-01-19 |
| 10763167 | Vertical semiconductor devices and method of manufacturing the same | Kyung Hwan Lee, Yong Seok Kim, Jun-Hee Lim, Kohji Kanamori | 2020-09-01 |
| 10680011 | Vertical semiconductor devices | Kyung Hwan Lee, Yong Seok Kim, Jun-Hee Lim, Kohji Kanamori | 2020-06-09 |
| 10672789 | Methods of manufacturing vertical semiconductor devices | Min-Yeong Song | 2020-06-02 |
| 10658374 | Vertical semiconductor device | Jo-young Park, Chang-Sup Lee, Se-mee Jang | 2020-05-19 |
| 10629609 | Three dimensional semiconductor device and method of forming the same | Chang-Sup Lee, Phil Ouk Nam, Sung Yun LEE | 2020-04-21 |