Koyamada; Yahei
Patent Applications and Registrations
Patent applications and USPTO patent grants for Koyamada; Yahei.The latest application filed is for "brillouin scattering measurement method and brillouin scattering measurement device".
- Koyamada; Yahei - Tokyo JP
- Koyamada; Yahei - Edogawa-ku Tokyo
- Koyamada; Yahei - Ibaraki JP
| Patent | Date |
|---|---|
| Brillouin scattering measurement method and Brillouin scattering measurement device Grant 11,112,358 - Nishiguchi , et al. September 7, 2 | 2021-09-07 |
| Brillouin Scattering Measurement Method And Brillouin Scattering Measurement Device App 20200041411 - Nishiguchi; Kenichi ; et al. | 2020-02-06 |
| Apparatus for measuring the characteristics of an optical fiber Grant 7,873,273 - Koyamada January 18, 2 | 2011-01-18 |
| Optical fiber Grant 7,742,671 - Koyamada , et al. June 22, 2 | 2010-06-22 |
| Optical Fiber App 20090148112 - KOYAMADA; Yahei ; et al. | 2009-06-11 |
| Apparatus for measuring the characteristics of an optical fiber App 20080145049 - Koyamada; Yahei | 2008-06-19 |
| Plastic optical fiber, optical fiber cable and optical transmission device Grant 6,606,441 - Irie , et al. August 12, 2 | 2003-08-12 |
| Plastic optical fiber, optical fiber cable and optical transmission device App 20020037145 - Irie, Kikue ; et al. | 2002-03-28 |
| Light frequency control apparatus Grant 5,500,762 - Uchiyama , et al. March 19, 1 | 1996-03-19 |
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