Issued Patents All Time
Showing 201–225 of 253 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6688864 | Oil leak prevention structure of vacuum pump | Masahiro Kawaguchi, Osamu Uchiyama | 2004-02-10 |
| 6663367 | Shaft seal structure of vacuum pumps | Masahiro Kawaguchi, Ryosuke Koshizaka | 2003-12-16 |
| 6659747 | Shaft seal structure of vacuum pumps | Masahiro Kawaguchi, Satoshi Egashira | 2003-12-09 |
| 6659227 | Oil leak prevention structure for vacuum pump | Masahiro Kawaguchi, Satoru Kuramoto | 2003-12-09 |
| 6659746 | Shaft seal structure of vacuum pumps | Nobuaki Hoshino, Mamoru Kuwahara, Masahiko Okada | 2003-12-09 |
| 6609897 | Motor-operated compressor | Yoshiyuki Nakane, Susumu Tarao, Kenichi Morita, Kazuo Murakami | 2003-08-26 |
| 6594451 | Image forming apparatus, and use situation reporting system for reporting use situations of developer and other consumables stowed in image forming apparatus | Tomomi Kakeshita, Hiroshi Sasame, Hiroaki Ogata | 2003-07-15 |
| 6587649 | Image forming apparatus, cartridge detachably mountable to the image forming apparatus, developer remainder displaying method and system | Hiroaki Ogata | 2003-07-01 |
| 6584291 | IMAGE FORMING APPARATUS FOR CALCULATING A PRINTABLE NUMBER OF SHEETS AND A CARTRIDGE DETACHABLY MOUNTABLE TO THE APPARATUS COMPRISING A MEMORY FOR STORING DATA REPRESENTING A PRESENT AMOUNT OF DEVELOPER | — | 2003-06-24 |
| 6554594 | Shaft seal structure for vacuum pump | Yoshinari Suzuki, Masahiro Ida, Masahiro Kawaguchi | 2003-04-29 |
| 6546212 | Image forming apparatus and unit detachably attachable to the same image forming apparatus and information displaying system related to unit detachably attachable to the same image forming apparatus | Hiroaki Ogata, Hiroshi Sasame | 2003-04-08 |
| 6493519 | Image forming apparatus having a plurality of image forming stations, and unit detachably mountable on the apparatus | Hiroshi Sasame, Hiroaki Ogata, Tomomi Kakeshita | 2002-12-10 |
| 6457959 | Anti-rotation mechanism for movable scroll in scroll compressor | Yoshiyuki Nakane, Toshiro Fujii, Naoya Yokomachi, Kazuo Murakami | 2002-10-01 |
| 6453139 | Image forming apparatus | Hiroshi Sasame, Hiroaki Ogata, Yasunari Watanabe, Motoki Adachi | 2002-09-17 |
| 6415125 | Developing apparatus featuring an area where a partly exposed developer agitating member and conveying member are disposed | Hiroaki Ogata | 2002-07-02 |
| 6415127 | Developing apparatus having a direct or alternating current applied thereto | Hiroshi Sasame, Tetsuya Kobayashi, Kouji Hashimoto, Yasunari Watanabe | 2002-07-02 |
| 6368074 | Piston type compressor | Yoshiyuki Nakane | 2002-04-09 |
| 6347927 | Piston-type compressor with bolted separating wall | Yoshiyuki Nakane | 2002-02-19 |
| 6347198 | Image forming apparatus having developer amount detecting means and cartridge detachably mountable on the apparatus having a memory for storing information on the amount of developer detected by detecting means | Hiroshi Sasame, Soya Endo | 2002-02-12 |
| 6340443 | Fine particle/polyester slurry melt-kneaded in extruder with polyester | Hideshi Kurihara, Seiichi Takao, Kazumoto Miyajima, Toru Takase | 2002-01-22 |
| 6287096 | Anti-rotation mechanism for movable scroll in scroll compressor | Yoshiyuki Nakane, Toshiro Fujii, Naoya Yokomachi, Kazuo Murakami | 2001-09-11 |
| 6229971 | Toner concentration detecting method and system | — | 2001-05-08 |
| 6213741 | Scroll type compressor | Tatsushi Mori, Hiroyuki Hayashi, Shigeru Hisanaga, Yukio Ogawa, Tsuyoshi Takemoto | 2001-04-10 |
| 6141510 | Toner concentration detecting method and system | — | 2000-10-31 |
| 6134898 | Positive-displacement-type refrigerant compressor with a novel oil-separating and lubricating system | Satoshi Umemura, Keishi Nakagaki | 2000-10-24 |