Issued Patents All Time
Showing 25 most recent of 58 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12431440 | SiC composite substrate and composite substrate for semiconductor device | Kiyoshi MATSUSHIMA, Jun Yoshikawa, Risa MIYAKAZE | 2025-09-30 |
| 12424440 | Rare earth-containing SiC substrate and method for producing SiC epitaxial layer | Kiyoshi MATSUSHIMA, Jun Yoshikawa | 2025-09-23 |
| 12421621 | Underlying substrate | Hiroshi Fukui, Jun Yoshikawa | 2025-09-23 |
| 12406845 | α-Ga2O3 semiconductor film | Hiroshi Fukui, Jun Yoshikawa | 2025-09-02 |
| 12351906 | Semiconductor film | Jun Yoshikawa, Hiroshi Fukui | 2025-07-08 |
| 12351941 | Ground substrate and method for producing same | Jun Yoshikawa | 2025-07-08 |
| 12183792 | SiC composite substrate and composite substrate for semiconductor device | Kiyoshi MATSUSHIMA, Jun Yoshikawa, Risa MIYAKAZE | 2024-12-31 |
| 12163249 | Ground substrate and method for producing same | Jun Yoshikawa | 2024-12-10 |
| 12159907 | Semiconductor film | Hiroshi Fukui, Jun Yoshikawa | 2024-12-03 |
| 12125883 | Biaxially oriented SiC composite substrate and semiconductor device composite substrate | Kiyoshi MATSUSHIMA, Jun Yoshikawa | 2024-10-22 |
| 12080551 | SiC composite substrate including biaxially oreinted SiC layer and semiconductor device | Risa MIYAKAZE, Kiyoshi MATSUSHIMA, Jun Yoshikawa | 2024-09-03 |
| 12065383 | Oriented ceramic sintered body production method and flat sheet | Kei Sato, Kiyoshi MATSUSHIMA, Takahiro Maeda, Jun Yoshikawa, Tsutomu Nanataki | 2024-08-20 |
| 11942520 | Semiconductor film | Hiroshi Fukui | 2024-03-26 |
| 10774002 | Method for producing oriented sintered body | Kei Sato, Takahiro Maeda, Tsutomu Nanataki | 2020-09-15 |
| 10717677 | Method for producing transparent alumina sintered body | Kiyoshi MATSUSHIMA, Kei Sato, Tsutomu Nanataki | 2020-07-21 |
| 10707373 | Polycrystalline gallium nitride self-supported substrate and light emitting element using same | Kei Sato, Yoshitaka Kuraoka, Katsuhiro Imai, Tsutomu Nanataki | 2020-07-07 |
| 10460970 | Electrostatic chuck | Tsutomu Nanataki | 2019-10-29 |
| 10435816 | Oriented alumina substrate for epitaxial growth | Kei Sato, Kiyoshi MATSUSHIMA, Tsutomu Nanataki | 2019-10-08 |
| 10435815 | Oriented alumina substrate for epitaxial growth | Kei Sato, Kiyoshi MATSUSHIMA, Tsutomu Nanataki | 2019-10-08 |
| 10427949 | Alumina sintered body and base substrate for optical device | Kiyoshi MATSUSHIMA, Kei Sato, Tsutomu Nanataki | 2019-10-01 |
| 10343928 | Method for manufacturing plate-like alumina powder and plate-like alumina powder | Hiroshi Fukui, Kei Sato, Tsutomu Nanataki | 2019-07-09 |
| 10336625 | Alumina sintered body and base substrate for optical device | Kiyoshi MATSUSHIMA, Kei Sato, Tsutomu Nanataki | 2019-07-02 |
| 10315957 | Method for producing transparent alumina sintered body | Kiyoshi MATSUSHIMA, Kei Sato, Tsutomu Nanataki | 2019-06-11 |
| 10221076 | Method for producing a plate-like alumina power | Hiroshi Fukui, Kei Sato, Tsutomu Nanataki | 2019-03-05 |
| 10156024 | Zinc oxide free-standing substrate and method for manufacturing same | Jun Yoshikawa, Hirofumi Yamaguchi, Tsutomu Nanataki | 2018-12-18 |