This inventor holds 3 USPTO granted patents. Top assignees: Nippon Shokubai Kagaku Kogyo Co., Ltd., Nippon Shokubai Co., Ltd.. Active years: 1992-1999.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Suita, JP (1992 - 1993)
- Hyogo, JP (1999)
Company Filing History:
2 out of 236 
1 out of 1,335 Years Active: 1992-1999
Title: Keiichi Uehara: Inventor in Polymer and Toner Technologies
Introduction
Keiichi Uehara is an inventor associated with Suita, Japan. His recorded patent portfolio includes 3 patents, with inventions concerning carbon black graft polymers and coloring particles used in electrostatic-image development.
Latest Patents
Uehara’s listed patents include “Carbon Black Graft Polymer, Method for Production Thereof, and Use,” which concerns a graft polymer, its production, and its applications.
Another listed invention, “Coloring Fine Particles and Toner for Developing Electrostatic Images,” describes heating spheroidal coloring particles produced by suspension polymerization. The particles are heated until they fuse into a block while retaining their interfaces, then the block is crushed to produce particles with an average diameter substantially similar to that of the original particles. The invention also covers toner for developing electrostatic images that uses these coloring particles.
Career Highlights
Uehara’s career is associated with Nippon Shokubai Kagaku Kogyo Co., Ltd. and Nippon Shokubai Co., Ltd. His listed patent work reflects a focus on polymer materials, coloring particles, and toner technology.
Collaborations
Hayato Ikeda and Mitsuo Kushino are identified as Uehara’s coworkers.
Conclusion
Keiichi Uehara’s recorded inventions connect polymer chemistry with practical materials for coloring and electrostatic-image development.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile