Resources Contact Us Home Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE     Driving device for a stepping motor Image Number 7 for United States Patent #4959601. In a driving circuit for a stepping motor in which a phase current corresponding to a predetermined reference voltage is generated when an excitation signal for each phase of the stepping motor is being produced and a coil of the corresponding phase is excited by the phase current, the supply time of the phase current is controlled by the pulse signal of a pulse generator for varying the pulse width, thereby improving the rising state of the phase current.       Recently Added Patents Biodegradable waterproof paper and manufacturing method for the same Earphone Open wrench Oxidative dyeing compositions comprising an 1-Hexy1/Hepty1-4,5-diaminopyrazole and a benzene-1,3-diol and derivatives thereof Adaptive multiple FIFO scheme Floatable in vivo sensing device and method for use Collaborative online spreadsheet application   Randomly Featured Patents Highly cross-linked, extremely hydrophobic nitric oxide-releasing polymers and methods for their manufacture and use Camera magnifier Customized clip-on eyeglass accessory and method of manufacture Thin film forming apparatus, film supplier, film cassette, transport mechanism and transport method Keyboard 4-Aminoaliphatic-2,3,5,6-[dibenzobicyclo[5.1.0]octanes] and salts thereof Platinum complex, process for preparing same and antitumor agent Mammalian cytokines; related reagents Method of determining knock resistance rating for non-commercial grade natural gas Reducing the complexity of finite state machine test generation using combinatorial designs © 2006-2008 PatentGenius. All Rights Reserved.