Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5338607 | 1.3 micrometer-band amplifying optical fiber preform | Hiromi Kawamoto, Yoshinori Kubota, Natsuya Nishimura | 1994-08-16 |
| 5308371 | Method of forming fluoride glass fiber preform | Hiromi Kawamoto, Yoshinori Kubota, Natsuya Nishimura | 1994-05-03 |
| 5147435 | Method for suppressing crystallization of fluoride glass articles by treatment with inorganic fluoride | Yoshinori Kubota, Yasushi Kita | 1992-09-15 |
| 4593132 | Process for producing a graphite fluoride | Yasushi Kita, Hishaji Nakano, Shiro Moroi | 1986-06-03 |
| 4590316 | Method of safely preparing graphite fluoride | Yasushi Kita, Hisaji Nakano, Shiro Moroi | 1986-05-20 |
| 4557974 | Graphite fluoride coated with organic polymer and method of preparing same | Hitoshi Tsukuda | 1985-12-10 |
| 4508761 | Method of preparing polymer-coated particulate inorganic material | Takao Miyoshi | 1985-04-02 |
| 4500678 | Lubricant comprising a partially defluorinated graphite fluoride | Yasushi Kita, Shirou Moroi, Hisaji Nakano | 1985-02-19 |