1

2

3
Sarah Reybuck Collier
Paul G Rasmussen, Sarah E Reybuck, Taeseok Jang, Richard G Lawton: Diaminomaleonitrile derivative compounds, polymers, and method of producing same. The Regents of the University of Michigan, Barnes Kisselle Raisch Choate Whittemore & Hulbert P C, January 27, 1998: US05712408 (3 worldwide citation)

The invention provides a compound having conjugated double bonds in an acyclic structure formed by Schiff base reaction between an unsaturated aldehyde (RCHO) and diaminomaleonitrile (DE). The compound is a monoalkylated DAMN derivative having one unit of diaminomaleonitrile for every unit of alkyl ...


4

5
Brian Goodall
Brian Leslie Goodall, Wilhelm Risse, Joice P Mathew: Addition polymers of polycycloolefins containing functional substituents. Thoburn T Dunlap, January 6, 1998: US05705503 (33 worldwide citation)

Addition polymers containing functionally substituted polycyclic repeat units are prepared in the presence of a single or multicomponent catalyst system containing a palladium metal ion source. The catalysts are not poisoned by functional substituents and show good catalytic activity for polymerizin ...


6

7
Yun Man Hee: Apparatus for automatically repeating selected sentences. Yun Man Hee, January 31, 1998: KR1019950006765

PURPOSE: An apparatus for repeating selected sentences is provided, so that users can repeatedly listen to sentences, by controlling replaying speeds of tapes and to set up non-recording intervals to perform simultaneous recording processes. CONSTITUTION: An apparatus for repeating selected sentence ...


8
Lee Du Hee: Reverse play device of dvcr. LG Electronics, January 31, 1998: KR1019950003552

PURPOSE: A reverse play device of a DVCR is provided to enable a reverse play of data by reversing a rotation direction of a head and a progress direction of a tape considering a reverse rotation of a drum, a reverse transit of a tape, a synchronizing signal detection by a synchronization pattern in ...


9
Kwon Tae Kyung: Modulator and demodulator of dvcr. LG Electronics, January 31, 1998: KR1019950002231

PURPOSE: A modulator and demodulator of a digital video cassette recorder(DVCR) is provided to improve a restoring characteristic of data by modulating/demodulating variably a mapping table according to video data inputted to DVCR. CONSTITUTION: A modulator and demodulator of a digital video cassett ...


10
Yun Hong Gyun: Separable door opening/closing device of electronic communication equipment. Lg Information &Amp Amp Communications, January 31, 1998: KR1019940032420

PURPOSE: A separable door opening/closing device is provided to easily separate the door from a shelf and to smoothly open and close the door. CONSTITUTION: An external force is given and a door(2) is circularly rotated. First and second hinge pins are rotated so that a second semi-circular projecti ...



Click the thumbnails below to visualize the patent trend.