Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5198335 | Integral multilayer analytical element for analysis of ammonia-forming substrate | Nobuyoshi Sekikawa, Harumi Katsuyama | 1993-03-30 |
| 5192693 | Method of using chemical analysis slide | Kenichiro Yazawa, Masao Kitajima | 1993-03-09 |
| 5177021 | Element for immunoassay and process of using the same | — | 1993-01-05 |
| 5019347 | Integral multilayer analytical element | Nobuo Hiratsuka | 1991-05-28 |
| 5004685 | Dry-type multilayer analytical element | Fuminori Arai | 1991-04-02 |
| 4981805 | Method of using chemical analysis slide | Kenichiro Yazawa, Masao Kitajima | 1991-01-01 |
| 4877579 | Multilayer device for detecting bilurubin | Kenichiro Yazawa, Osamu Seshimoto, Masao Kitajima | 1989-10-31 |
| 4870005 | Multilayer analysis element | Yutaka Akiyoshi, Masao Kitajima | 1989-09-26 |
| 4753531 | Flat container type analytical instrument | Nobuo Hiratsuka | 1988-06-28 |
| 4631174 | Multilayer chemical analysis member having an outer waterproof layer | — | 1986-12-23 |
| 4612290 | Method of bilirubin detection | Kenichiro Yazawa, Osamu Seshimoto, Masao Kitajima | 1986-09-16 |
| 4548906 | Integral multilayer analytical element for the analysis of ammonia or an ammonia forming substrate and a method for the detection thereof using the same | Nobuyoshi Sekikawa, Harumi Katsuyama | 1985-10-22 |
| 4503145 | Quantitative analysis film | Harumi Katsuyama, Yoshikazu Amano | 1985-03-05 |
| 4478942 | Quantitative analysis film and a method for colorimetric analysis using the same | Harumi Katsuyama, Yoshikazu Amano | 1984-10-23 |
| 4387990 | Chemical analysis slide frame assembly | Kenichiro Yazawa, Masao Kitajima | 1983-06-14 |
| 4356149 | Multi-layer chemical analytical materials | Masao Kitajima, Fuminori Arai | 1982-10-26 |
| 4340565 | Hematocrit value determining element | Masao Kitajima, Fuminori Arai | 1982-07-20 |
| 4337222 | Hemoglobin concentration determining article | Masao Kitajima, Fuminori Arai | 1982-06-29 |
| 4328184 | Test slide strip | — | 1982-05-04 |
| 4292272 | Multilayer analysis sheet for analyzing liquid samples | Masao Kitajima, Fuminori Arai | 1981-09-29 |
| 4270920 | Integrated material for chemical analysis and a method of using the same | Fuminori Arai, Masao Kitajima | 1981-06-02 |
| 4256693 | Multilayered integral chemical analysis element for the blood | Masao Kitajima | 1981-03-17 |
| 4255384 | Multilayered integral element for the chemical analysis of the blood | Masao Kitajima, Fuminori Arai | 1981-03-10 |
| 4250010 | Integrated ion selection electrode device | Masao Kitajima, Isamu Hatanaka | 1981-02-10 |
| 4248829 | Integrated analytical material suitable for simultaneously performing a plurality of analyses | Masao Kitajima, Fuminori Arai | 1981-02-03 |