Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10329155 | Manufacturing method for lithium difluorophosphate powder, and lithium difluorophosphate | Keita Nakahara, Takayoshi MORINAKA, Yuta Ikeda | 2019-06-25 |
| 6645893 | Glass suitable for optical functional elements and process for producing same | Kiyotaka Miura, Seiji Fujiwara, Takuya Teshima, Yoshinori Kubota | 2003-11-11 |
| 6534207 | Process for producing amorphous material containing single crystal or polycrystal and material produced | Yoshinori Kubota | 2003-03-18 |
| 6501596 | 1.4-1.52 &mgr;m-band optical amplifier | Hiroyuki Inoue, Yoshinori Kubota, Kiyotaka Miura, Takuya Teshima | 2002-12-31 |
| 6261420 | Process for producing amorphous material containing single crystal or polycrystal and material produced | Yoshinori Kubota | 2001-07-17 |
| 6198870 | Optical waveguide and 1.5 .mu.m-band optical amplifier using same | Yoshinori Kubota | 2001-03-06 |
| 5684815 | Upconversion laser material | Kiyotaka Miura, Hiromi Kawamoto, Yoshinori Kubota, Yasushi Kita | 1997-11-04 |
| 5338607 | 1.3 micrometer-band amplifying optical fiber preform | Hiromi Kawamoto, Yoshinori Kubota, Akira Sakanoue | 1994-08-16 |
| 5308371 | Method of forming fluoride glass fiber preform | Hiromi Kawamoto, Yoshinori Kubota, Akira Sakanoue | 1994-05-03 |