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For the Inventor, By the Inventor

Ichihara, Japan

Akinori Shiotani

This inventor holds 11 USPTO granted patents. Top assignee: Ube Industries, Inc.. Active years: 1977-2004.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Akinori Shiotani. Retrieved from https://idiyas.com/inventor/akinori-shiotani

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

USPTO Granted Patents = 11

% Patents Active = 100.0

Average Co-Inventor Count = 3.6

ph-index = 5

Forward Citations = 69(Granted Patents)


Location History:

  • Ichihara, JA (1977)
  • Ichihara, JP (1981 - 1999)
  • Chiba, JP (1998 - 2004)

Company Filing History:

goldMedal11 out of 1,432 
 
Ube Industries, Inc.
 patents

Years Active: 1977-2004

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11 patents (USPTO):Explore Patents
1. 6797392 - Polyimide/metal composite sheet (2004-09-28),
2. 5922827 - Process for producing a polycarbonate (1999-07-13),
3. 5898048 - Polyimide powder and process for producing powder molded body (1999-04-27),
4. 5741598 - Polyimide/metal composite sheet (1998-04-21),
5. 5243067 - Process of production of 3,4,3',4'-substituted biphenyl compound (1993-09-07),
6. 5118782 - Thermotropic aromatic polyester which is melt-processable at low (1992-06-02),
7. 4581469 - Method for producing biphenyltetracarboxylic esters (1986-04-08),
8. 4338456 - Method of producing biphenyltetracarboxylic esters (1982-07-06),
9. 4294976 - Process for producing biphenyl compounds (1981-10-13),
10. 4292435 - Method of producing biphenyltetracarboxylic esters (1981-09-29),
11. 4042603 - Intramolecular cyclization in a fatty acid ester solvent (1977-08-16),

Title: Akinori Shiotani: Innovator in Polyimide and Polycarbonate Technologies

Introduction

Akinori Shiotani is a prominent inventor based in Ichihara, Japan. He has made significant contributions to the field of materials science, particularly in the development of advanced composite materials. With a total of 11 patents to his name, Shiotani's work has had a substantial impact on various industrial applications.

Latest Patents

One of Shiotani's latest innovations is a polyimide/metal composite sheet. This composite is composed of a metal film and a polyimide film, which is prepared through the reaction of asymmetric biphenyltetracarboxylic acid dianhydride and 1,3-bis(4-aminophenoxy)benzene. The unique feature of this composite is that the polyimide film is firmly bonded to the metal film, making it difficult to peel apart. Additionally, the polyimide film can contain a solid filler, enhancing its properties for various applications.

Another notable patent involves a process for producing polycarbonate. In this process, a diaryl carbonate is produced by decarbonylating a diaryl oxalate, which can be prepared by transesterification of a dialkyl oxalate with a hydroxyaryl compound. This reaction occurs in the presence of a catalyst while removing the resultant carbon monoxide as a by-product. The resulting diaryl carbonate is then condensation-polymerized with a polyhydroxyl compound, allowing for the recovery of a hydroxyaryl compound from the reaction system to produce polycarbonate.

Career Highlights

Akinori Shiotani is currently associated with Ube Industries, Inc., a company known for its innovative materials and chemical products. His work at Ube Industries has allowed him to explore and develop cutting-edge technologies that contribute to the advancement of materials science.

Collaborations

Shiotani has collaborated with notable colleagues, including Hiroshi Itatani and Akiyoshi Yokota. These collaborations have fostered a creative environment that encourages innovation and the sharing of ideas.

Conclusion

Akinori Shiotani's contributions to the fields of polyimide and polycarbonate technologies highlight his role as a leading inventor in materials science. His innovative patents and collaborations continue to influence the industry and pave the way for

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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