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For the Inventor, By the Inventor

Hiratsuka, Japan

Toshiaki Izumida

This inventor holds 9 USPTO granted patents. Top assignees: Mitsubishi Gas Chemical Company, Inc., Mitsubishi Engineering-Plastics Corporation, Dai Nippon Toryo Co., Ltd.. Active years: 1986-1999.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshiaki Izumida. Retrieved from https://idiyas.com/inventor/toshiaki-izumida

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

Calculating rank
USPTO Granted Patents = 9

% Patents Active = 100.0

Average Co-Inventor Count = 3.9

ph-index = 6

Forward Citations = 180(Granted Patents)


Location History:

  • Hyogo, JP (1986)
  • Osaka, JP (1989)
  • Kanagawa, JP (1991 - 1993)
  • Hiratsuka, JP (1997 - 1999)

Company Filing History:

goldMedal6 out of 2,304 
 
Mitsubishi Gas Chemical Company, Inc.
 patents
silverMedal3 out of 140 
 
Mitsubishi Engineering-Plastics Corporation
 patents
bronzeMedal2 out of 116 
 
Dai Nippon Toryo Co., Ltd.
 patents
4. 1 out of 27,375 
 
Matsushita Electric Industrial Co., Ltd.
 patents
where one patent can have more than one assignee

Years Active: 1986-1999

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9 patents (USPTO):Explore Patents
1. 5902534 - Method of injection-molding thermoplastic resins (1999-05-11),
2. 5741446 - Method of producing a molded article using a mold assembly with an (1998-04-21),
3. 5736090 - Method of in-mold coating (1998-04-07),
4. 5676896 - Process for the production of molded article with sealed pattern (1997-10-14),
5. 5259999 - Process for producing resin molded article having diminished residual (1993-11-09),
6. 5073313 - Process for producing low-dust-level polycarbonate molded article (1991-12-17),
7. 5034447 - Sliding resin composition (1991-07-23),
8. 4845193 - Process for producing polycarbonate resin molding material having low (1989-07-04),
9. 4631334 - Optical articles of branched polycarbonate resin (1986-12-23),

I specialize in innovations, inventions, inventors, patent attorneys, assignees, and patents.

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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