Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5935642 | Formation of resistor with small occupied area | — | 1999-08-10 |
| 5825058 | Semiconductor IC with FET and capacitor having side wall spacers | — | 1998-10-20 |
| 5698463 | Semiconductor IC with FET and capacitor having side wall spacers and manufacturing method thereof | — | 1997-12-16 |
| 5618749 | Method of forming a semiconductor device having a capacitor and a resistor | Toshiyuki Takahashi, Touhachi Makino | 1997-04-08 |
| 5305634 | Weathering test method and sample holder used therein | Shigeo Suga, Etsuji Natori | 1994-04-26 |
| 5138892 | Accelerated light fastness test method | — | 1992-08-18 |
| 4983526 | Method of measuring and controlling ozone concentration | Kenhachi Mitsuhashi | 1991-01-08 |
| 4975047 | Oven provided with oxygen concentration controls | Kenhachi Mitsuhashi | 1990-12-04 |
| 4954693 | Ventilation regulated hot air supplied constant temperature oven | Kenhachi Mitsuhashi | 1990-09-04 |
| 4866003 | Plasma vapor deposition of an improved passivation film using electron cyclotron resonance | Katsuyuki Yokoi, Toshio Fujioka | 1989-09-12 |
| 4831564 | Apparatus for estimating and displaying remainder of lifetime of xenon lamps | — | 1989-05-16 |
| 4717259 | Luster rating method and apparatus | — | 1988-01-05 |
| 4704903 | Light fastness/weather resistance accelerated test machine with an air mixing regulator | Kiyoshi Chaki, Etsuji Natori, Shigeo Suga, Katsuaki Mitamura | 1987-11-10 |
| 4627287 | Light-resistance tester for maintaining uniform temperature at surface of sample | — | 1986-12-09 |
| 4613235 | Method and apparatus for measuring gloss which correlates well with visually estimated gloss | — | 1986-09-23 |
| 4544995 | Apparatus for testing light fastness of a material | — | 1985-10-01 |
| 4519716 | Device for testing combustability | — | 1985-05-28 |
| 4382226 | Electrolytic cell for actinometers | — | 1983-05-03 |
| 4232971 | Integrating sphere type standard light source device | — | 1980-11-11 |
| 4196611 | Testing apparatus for determining abrasion resistance of a surface | — | 1980-04-08 |
| 4184096 | Weather resistance and light fastness tester with cooled xenon lamp | — | 1980-01-15 |