Issued Patents All Time
Showing 76–100 of 100 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6431324 | Controller scheduling constant current charging of a rechargeable power source of an elevator system | Shinobu Tajima, Ikuro Suga, Kazuyuki Kobayashi | 2002-08-13 |
| 6422351 | Elevator speed controller responsive to dual electrical power sources | Shinobu Tajima, Ikuro Suga, Kazuyuki Kobayashi | 2002-07-23 |
| 6415892 | Power control including a secondary battery for powering an elevator | Shinobu Tajima, Ikuro Suga, Kazuyuki Kobayashi | 2002-07-09 |
| 6334511 | Double-deck elevator control system | — | 2002-01-01 |
| 5796228 | Method of controlling rotary magnet multi-phase synchronous motor and control therefor | Sadaaki Kojima, Satoru Kato | 1998-08-18 |
| 5711925 | Synthesis of pure disilicon hexafluoride | Tetsuiji Noda, Hiroshi Suzuki | 1998-01-27 |
| 5628053 | Integrated multilayered microwave circuit and a method of fabricating it | Akira Endo | 1997-05-06 |
| 5436823 | Parallel operation controller for power converters | — | 1995-07-25 |
| 5408608 | Distributed data base control center having a plurality of information tables for facilitating a direct communication among terminal units of a network | Tadamitsu Ryu, Yoshio Mogi, Takanori Fukatsu, Gen Kakehi, Masahiko Murakawa +5 more | 1995-04-18 |
| 5400240 | Power converter apparatus | — | 1995-03-21 |
| 5400039 | Integrated multilayered microwave circuit | Akira Endo | 1995-03-21 |
| 5390102 | Parallel running control apparatus for PWM inverters | — | 1995-02-14 |
| 5325285 | Parallel running control apparatus for PWM inverters | — | 1994-06-28 |
| 5285029 | Device for driving elevator at service interruption | — | 1994-02-08 |
| 5034874 | PWM converter apparatus | — | 1991-07-23 |
| 4984147 | Control method for PWM converter | — | 1991-01-08 |
| 4870744 | Tool exchange system for machining tools | Hisao Ishii, Yoshihisa Akiyama, Hiroshi Kamada, Takashi Nagatomi | 1989-10-03 |
| 4847744 | Voltage converter apparatus | — | 1989-07-11 |
| 4842359 | Optical star coupler and method of manufacturing the same | Katsuyuki Imoto, Minoru Maeda, Masayoshi Kameyama, Yasushi Ikuta, Shigeru Oho | 1989-06-27 |
| 4796993 | Phase modulation type fiber optic gyroscope | Hisao Sonobe, Junichi Makino, Shigeru Oho, Masahiro Matsumoto, Kouji Kitano | 1989-01-10 |
| 4783740 | Inventory management system | Toshimichi Ishizawa, Ryuichi Nakagawa, Youji Yamaguchi, Takashi Kobayashi, Yoshihisa Toyoda +6 more | 1988-11-08 |
| 4745673 | Spindle head unit of a machining center | Toshiyuki Aso, Yoshihisa Akiyama | 1988-05-24 |
| 4726643 | Optical star coupler and method for manufacturing the same | Katsuyuki Imoto, Minoru Maeda, Masayoshi Kameyama, Yasushi Ikuta, Shigeru Oho | 1988-02-23 |
| 4721188 | Control apparatus for A.C. elevator | Tooru Tanahashi | 1988-01-26 |
| 4471443 | Compensation method and apparatus for thermal displacement | Mitsuo Kinoshita | 1984-09-11 |