Issued Patents 1989
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875749 | Mechanism for positioning the light-receiving end of an optical conductor cable at the focal position of a lens | Isao Kosugi | 1989-10-24 |
| 4865035 | Light ray radiation device for use in the medical treatment of the ear | — | 1989-09-12 |
| 4852549 | Light ray radiation device for administering oral medical treatment to diseased gums | — | 1989-08-01 |
| 4851823 | Fire alarm system | — | 1989-07-25 |
| 4849866 | Rainbow creating device | — | 1989-07-18 |
| 4846554 | Lens-holding apparatus | Isao Kosugi | 1989-07-11 |
| 4844069 | Light rays radiation device for medical treatment | — | 1989-07-04 |
| 4844598 | Light focusing lens with centrally disposed light intercepting member | — | 1989-07-04 |
| 4844579 | Solar ray energy radiation device for use in medical treatment | — | 1989-07-04 |
| 4842356 | Light ray radiation device for use in medical treatment of the nose and throat passages | — | 1989-06-27 |
| 4841694 | Sash plate used for inserting a cable | — | 1989-06-27 |
| 4843530 | Light ray radiation stand | Kazuyoshi Hara | 1989-06-27 |
| 4838271 | Visible light ray radiation device for use in medical treatment | — | 1989-06-13 |
| 4822123 | Optical radiator | — | 1989-04-18 |
| 4815815 | Device and a method of directing light energy to a predetermined area in the sea | — | 1989-03-28 |
| 4809675 | Solar ray collecting device | — | 1989-03-07 |
| 4804240 | Light ray radiation device for use in medical treatment | — | 1989-02-14 |
| 4802066 | Bed employed for light bathing | — | 1989-01-31 |
| 4799629 | Flying object for collecting solar rays | — | 1989-01-24 |
| 4796967 | Solar ray energy radiation device for use in medical treatment | — | 1989-01-10 |
| 4794925 | Solar ray energy radiating device for use in medical treatment | — | 1989-01-03 |