Power output apparatus and method of controlling the same
CA 2246752 C · Owner: Nagamatsu, Shigetaka · Inventors: Miura, Tetsuya; Urano, Hiroaki; Matsuhashi, Shigeru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A power output apparatus (20) includes an engine (50) a clutch motor (30) , having rotors (31 and 33) respectively linked with a crankshaft (56) and a drive shaft (22), an assist motor (40) attached to a rotor-rotating shaft (38), a first clutch (45) for connecting and disconnecting the rotor-rotating shaft (38) to and from the crankshaft (56) a second clutch (46) for , connecting and disconnecting the rotor-rotating shaft (38) to and from the drive shaft (22), and a controller (80) for controlling the motors (30 and 40). The controller (80) operates the clutches (45 and 46) according to the states of the engine (50) and the drive shaft (22) and changes the connection of the …
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed April 14, 1997 and granted June 18, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 14, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 14, 2019.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.