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For the Inventor, By the Inventor

Tsukuba, Japan

Kazuyoshi Kojima

This inventor holds 14 USPTO granted patents and 6 published patent applications and 1 EPO patent. Top assignee: Hitachi Chemical Company, Ltd.. Active years: 2000-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuyoshi Kojima. Retrieved from https://idiyas.com/inventor/kazuyoshi-kojima

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

Calculating rank
USPTO Granted Patents = 14 

% Patents Active = 42.9

 

Average Co-Inventor Count = 6.2

ph-index = 7

Forward Citations = 179(Granted Patents)


Location History:

  • Simodate, JP (2000 - 2002)
  • Tsukuba, JP (2001 - 2012)
  • Ibaraki, JP (2011 - 2012)
  • Chikusei, JP (2012 - 2013)

Company Filing History:

goldMedal14 out of 1,641 
 
Hitachi Chemical Company, Ltd.
 patents

Years Active: 2000-2013

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14 patents (USPTO):Explore Patents
1. 8501045 - Circuit connecting material, film-form circuit connecting material using the same, circuit member connecting structure and method of manufacturing the same (2013-08-06),
2. 8273458 - Adhesive for bonding circuit members, circuit board and process for its production (2012-09-25),
3. 8273457 - Adhesive for bonding circuit members, circuit board and process for its production (2012-09-25),
4. 8252419 - Adhesive for bonding circuit members, circuit board and process for its production (2012-08-28),
5. 8202622 - Circuit connecting material, film-form circuit connecting material using the same, circuit member connecting structure and method of manufacturing the same (2012-06-19),
6. 8132319 - Circuit connecting method (2012-03-13),
7. 8043709 - Circuit connecting material, film-like circuit connecting material using the same, circuit member connecting structure, and method of producing the same (2011-10-25),
8. 7879445 - Adhesive for bonding circuit members, circuit board and process for its production (2011-02-01),
9. 7247381 - Adhesive for bonding circuit members, circuit board, and method of producing the same (2007-07-24),
10. 6338195 - Connection sheet and electrode connection structure for electrically interconnecting electrodes facing each other, and method using the connection sheet (2002-01-15),
11. 6328844 - Filmy adhesive for connecting circuits and circuit board (2001-12-11),
12. 6223429 - Method of production of semiconductor device (2001-05-01),
13. 6184577 - Electronic component parts device (2001-02-06),
14. 6034331 - Connection sheet and electrode connection structure for electrically (2000-03-07),

Title: Kazuyoshi Kojima: Innovator in Circuit Connecting Materials

Introduction

Kazuyoshi Kojima is a prominent inventor based in Tsukuba, Japan. He has made significant contributions to the field of circuit connecting materials, holding a total of 14 patents. His work focuses on enhancing the efficiency and reliability of electronic components.

Latest Patents

Kojima's latest patents include innovative technologies such as a circuit connecting material, a film-form circuit connecting material, and a circuit member connecting structure. The circuit connecting material is designed for the mutual connection of circuit members, featuring electrodes and insulating layers formed adjacent to each other on the surface of a board. This material contains a bonding agent composition and conductive particles with specific properties, ensuring optimal performance. Additionally, he has developed an adhesive for bonding semiconductor chips to circuit boards, which facilitates electrical connections between the electrodes.

Career Highlights

Kojima is currently associated with Hitachi Chemical Company, Ltd., where he continues to advance his research and development efforts. His work has been instrumental in improving the manufacturing processes and materials used in electronic devices.

Collaborations

Kojima has collaborated with notable colleagues, including Itsuo Watanabe and Kenzo Takemura, to further enhance the innovations in circuit connecting technologies.

Conclusion

Kazuyoshi Kojima's contributions to the field of circuit connecting materials have established him as a key figure in the electronics industry. His innovative patents and ongoing research continue to shape the future of electronic component manufacturing.

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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