This inventor holds 17 USPTO granted patents and 1 EPO patent, primarily in Polymerization Processes. Top assignees: Mitsui Petrochemical Industries, Ltd., Mitsui Chemicals, Inc., Mitsui Engineering and Shipbuilding Company Limited. Active years: 1981-1999.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Waki, JP (1982 - 1985)
- Yamaguchi, JP (1981 - 1995)
- Kuga-Gun, JP (1997 - 1998)
- Yamaguchi-ken, JP (1998)
- Ichihara, JP (1985 - 1999)
- Waki-cho, JP (1999)
Company Filing History:
13 out of 1,008 
3 out of 1,817 
1 out of 244 
Years Active: 1981-1999
Areas of Expertise:
Title: Ryoichi Yamamoto: Innovator in Polymer Technology
Introduction
Ryoichi Yamamoto is a prominent inventor based in Yamaguchi, Japan. He has made significant contributions to the field of polymer technology, holding a total of 17 patents. His innovative approaches have advanced the methods of treating polyolefins and vapor phase polymerization.
Latest Patents
One of his latest patents is a method of treating polyolefin. This method involves a ligand-decomposition step where polyolefin, produced using a transition metal compound with cyclopentadienyl skeleton ligands, is contacted with a ligand decomposer. The decomposer can be water, oxygen, alcohol, alkylene oxide, or peroxide, which helps in decomposing the ligands present in the polyolefin. The second step is a ligand-removal process that heats the polyolefin to eliminate the decomposed ligands, resulting in a polyolefin that has reduced odor development during the molding process. Another notable patent is for a method of vapor phase polymerization, which includes a vapor phase polymerizer and blower. This method involves blowing a gaseous monomer into a fluidized bed reactor while feeding a solid catalyst, allowing for efficient polymer or copolymer production.
Career Highlights
Throughout his career, Ryoichi Yamamoto has worked with notable companies such as Mitsui Petrochemical Industries, Ltd. and Mitsui Chemicals, Inc. His work in these organizations has allowed him to develop and refine his innovative techniques in polymer processing.
Collaborations
Ryoichi has collaborated with esteemed colleagues, including Akifumi Kato and Yoshiaki Kikuchi. Their combined expertise has contributed to advancements in the field of polymer technology.
Conclusion
Ryoichi Yamamoto's contributions to polymer technology through his patents and collaborations highlight his role as a leading inventor in the industry. His innovative methods continue to influence the development of advanced materials.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile