Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6423965 | Mass spectrometer | Yuichiro Hashimoto, Takayuki Nabeshima, Yasuaki Takada, Minoru Sakairi | 2002-07-23 |
| 6248998 | Plasma ion source mass spectrometer | Toyoharu Okumoto, Akira Owada | 2001-06-19 |
| 5793039 | Mass spectrometer, skimmer cone assembly, skimmer cone and its manufacturing method | Konosuke Oishi, Toyoharu Okumoto, Takashi Iino | 1998-08-11 |
| 5763877 | Analyzer using plasma and analysis method using plasma, interface used for the same and sample introducing component used for the same | Konosuke Oishi, Toyoharu Okumoto, Takashi Iino | 1998-06-09 |
| 5616918 | Plasma ion mass spectrometer and plasma mass spectrometry using the same | Konosuke Oishi, Toyoharu Okumoto, Takashi Iino | 1997-04-01 |
| 5283624 | Multi-element simultaneous analysis atomic absorption spectroscopy photometer and multi-element simultaneous analytic method | Konosuke Oishi | 1994-02-01 |
| 5202562 | High sensitive element analyzing method and apparatus of the same | Masataka Koga, Toyoharu Okumoto, Masatoshi Kitagawa, Yukio Okamoto | 1993-04-13 |
| 5130537 | Plasma analyzer for trace element analysis | Yukio Okamoto, Takashi Iino, Satoshi Shimura, Hiromi Yamashita, Masatoshi Kitagawa | 1992-07-14 |
| 5108178 | Atomic absorption spectrophotometer and electromagnetic shut-off valve for use therein | Konosuke Oishi, Katsuhito Harada, Kazuo Moriya, Toyoharu Okumoto | 1992-04-28 |
| 5035505 | Atomic absorption spectroscopy photometer | Hayato Tobe | 1991-07-30 |
| D307398 | Atomic absorption spectrophotometer | Shouji Umemoto, Masatoshi Kitagawa | 1990-04-24 |
| 4890919 | Atomic absorption spectrophotometer | Konosuke Oishi, Katsuhito Harada, Toyoharu Okumoto | 1990-01-02 |
| 4867562 | Atomic absorption spectrophotometer | Konosuke Oishi, Masatoshi Kitagawa, Toyoharu Okumoto, Hayato Tobe | 1989-09-19 |
| 4840484 | Atomic absorption spectrophotometer with furnace at pressure equal or near light source pressure | Konosuke Oishi, Toyoharu Okumoto, Hayato Tobe | 1989-06-20 |
| 4553840 | Double monochrometer | Taro Nogami | 1985-11-19 |