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For the Inventor, By the Inventor

Ohtake, Japan

Teiichi Shiomi

This inventor holds 4 USPTO granted patents. Top assignee: Mitsui Petrochemical Industries, Ltd.. Active years: 1981-1984.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Teiichi Shiomi. Retrieved from https://idiyas.com/inventor/teiichi-shiomi

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 4

% Patents Active = 100.0

Average Co-Inventor Count = 2.2

ph-index = 4

Forward Citations = 38(Granted Patents)


Location History:

  • Otake, JP (1983)
  • Ohtake, JP (1981 - 1984)

Company Filing History:

goldMedal4 out of 1,008 
 
Mitsui Petrochemical Industries, Ltd.
 patents

Years Active: 1981-1984

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4 patents (USPTO):Explore Patents
1. 4461809 - Surface treating agent as an undercoat on surface of polyolefin shaped (1984-07-24),
2. 4386991 - Method of bonding 4-methyl-1-pentene polymers (1983-06-07),
3. 4349603 - Laminated multilayer structure (1982-09-14),
4. 4299754 - Surface treating agent and method for its production (1981-11-10),

Title: Teiichi Shiomi and His Polymer-Bonding Patents

Introduction

Teiichi Shiomi is an inventor associated with Ohtake, Japan, and Mitsui Petrochemical Industries, Ltd. His work includes patent inventions focused on treating polyolefin surfaces and improving adhesion between polymer materials. Shiomi is credited with 4 patents.

Latest Patents

One of Shiomi’s latest patents concerns a surface-treating agent used as an undercoat for shaped polyolefin articles. The agent contains a propylene-ethylene copolymer grafted with a monoalkyl ester of a monolefinic dicarboxylic acid, dissolved in an organic solvent. The formulation is designed to improve paint adhesion to polyolefin while maintaining storage stability.

Another patent describes a method for bonding 4-methyl-1-pentene polymer articles. Applying a solution of modified 4-methyl-1-pentene polymer in cyclohexene, carbon tetrachloride, or a combination of the two can improve adhesion between molded articles made from that polymer. The method also applies to bonding such an article to one made of a vinyl alcohol polymer, metal, or glass.

Career Highlights

Shiomi’s patent work addresses practical challenges in polymer manufacturing, particularly the difficulty of coating and bonding materials with surfaces that can resist adhesion. His inventions describe material formulations and application methods intended to strengthen those bonds.

Collaborations

Shiomi is associated with Mitsui Petrochemical Industries, Ltd. His listed coworkers include Masao Kameyama and Tadao Saito.

Conclusion

Teiichi Shiomi’s patents reflect a focus on improving surface treatment and bonding for polyolefin and 4-methyl-1-pentene polymer products.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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