Sumiden Opcom, Ltd.
14Patents
0Active
14Granted
29Portfolio score
Filing activity: Sep 27, 1991 → Apr 1, 2003
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5590227A | Optical connector apparatus | Physics | 40 | Expired |
| US5395101A | Clamp for use in optical fiber coupler manufacturing apparatus | Emerging Cross-Sectional Technologies | 34 | Expired |
| US5247598A | Reinforcing apparatus for optical-fiber coupler | Physics | 27 | Expired |
| US5309536A | Process for producing an optical fiber coupler | Physics | 26 | Expired |
| US5329600A | Reflection monitor optical fiber coupler manufacturing system and method | Physics | 21 | Expired |
| US5261018A | Optical-coupler reinforcing material and optical-coupler reinforcing method | Physics | 21 | Expired |
| US5777867A | Electric discharge method and apparatus | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US5208883A | Method of reinforcing optical fiber coupler | Physics | 11 | Expired |
| US5205851A | Method and apparatus for producing optical fiber coupler | Physics | 8 | Expired |
| US5176730A | Method of producing optical-fiber coupler | Physics | 8 | Expired |
| US5418872A | Optical connector connecting apparatus and optical connector connecting method | Physics | 6 | Expired |
| US5318610A | Fiber coupler manufacturing apparatus having an automatic breaking test device | Physics | 6 | Expired |
| US5306323A | Fiber coupler manufacturing apparatus having an automatic breaking test device | Physics | 2 | Expired |
| US7050673B2 | Temperature control device and arrayed waveguide grating optical wavelength multiplexer/demultiplexer | Physics | 0 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.