Issued Patents 1989
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889796 | Silver halide photographic emulsion | Akihiko Ikegawa, Yuichi Ohashi | 1989-12-26 |
| 4876183 | Tubular silver halide photosensitive materials sensitized with a luminous dye | Tsutomu Miyasaka, Tadao Sugimoto | 1989-10-24 |
| 4853328 | Reagent for assaying hydrogen peroxide and method of quantitative assay for hydrogen peroxide | Yoshio Inagaki | 1989-08-01 |
| 4839269 | Light-responsive material containing a dye comprising two cyclodextrin groups | Junichi Yamanouchi | 1989-06-13 |
| 4830447 | Optical wavelength conversion device | Kozi Kamiyama, Yoji Okazaki, Seiiti Kubodera, Syozo Takeuchi | 1989-05-16 |
| 4829940 | Piston for two-cycle engines | Kazutoshi Sato, Hiroaki Fujimoto | 1989-05-16 |
| 4822726 | Method for formation of color images and high silver chloride color photographic materials having improved spectral sensitivity and desilvering property for use therewith | Tadashi Ikeda, Tadashi Ogawa | 1989-04-18 |
| 4820606 | Silver halide photographic material | Tsutomu Miyasaka, Tadao Sugimoto | 1989-04-11 |
| 4800154 | Silver halide photographic emulsion | Haruo Takei | 1989-01-24 |
| 4797476 | Mono-4-arylazoaryl phosphoric esters | Yoshio Inagaki | 1989-01-10 |