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For the Inventor, By the Inventor

Tsukuba, Japan

Shinji Yamada

This inventor holds 15 USPTO granted patents and 1 published patent application, primarily in Low Dielectric Materials. Top assignees: Hitachi, Ltd., Hitachi Powdered Metals Co., Ltd., Hitachi Chemical Company, Ltd.. Active years: 1986-2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shinji Yamada. Retrieved from https://idiyas.com/inventor/shinji-yamada-gp04h3m5

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

Calculating rank
USPTO Granted Patents = 15 

% Patents Active = 40.0

Average Co-Inventor Count = 5.0

ph-index = 5

Forward Citations = 87(Granted Patents)


Location History:

  • Ichihara, JP (1986)
  • Takasaki, JP (1994)
  • Tsukuba, JP (2000 - 2014)

Company Filing History:

goldMedal11 out of 42,743 
 
Hitachi, Ltd.
 patents
silverMedal2 out of 149 
 
Hitachi Powdered Metals Co., Ltd.
 patents
bronzeMedal1 out of 1,641 
 
Hitachi Chemical Company, Ltd.
 patents
4. 1 out of 90 
 
Japan as Represented by Director General of Agency of Industrial Science
 patents

Years Active: 1986-2014

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Areas of Expertise:
Low Dielectric Loss
Glass Composition
Electronic Devices
Bonding Materials
Thermal Stability
High Frequency Signals
Curable Films
Semiconductor Packaging
Resin Composition
Optical Materials
Thyristors
Microcomputer Signals
15 patents (USPTO):Explore Patents
1. 8685872 - Low softening point glass composition, bonding material using same and electronic parts (2014-04-01),
2. 8470723 - Low softening point glass composition, bonding material using same and electronic parts (2013-06-25),
3. 8367573 - Glass composition and its applications (2013-02-05),
4. 8307863 - Fuel filling and waste solution recovery apparatus and fuel vessel (2012-11-13),
5. 7375155 - Low dielectric loss tangent resin composition, curable film and cured product, electrical part using the same and method for production thereof (2008-05-20),
6. 7193009 - Electronic device using low dielectric loss tangent insulators for high frequency signals (2007-03-20),
7. 7112627 - Low dielectric loss tangent films and wiring films (2006-09-26),
8. 6930140 - Low dielectric loss tangent resin composition, curable film and cured product, electrical part using the same and method for production thereof (2005-08-16),
9. 6855952 - Semiconductor device and semiconductor package (2005-02-15),
10. 6756441 - Low dielectric loss tangent resin composition, curable film and cured product, electrical part using the same and method for production thereof (2004-06-29),
11. 6638631 - Thermal stable low elastic modulus material and device using the same (2003-10-28),
12. 6638352 - Thermal stable low elastic modulus material and device using the same (2003-10-28),
13. 6013748 - Aromatic ester compound and second-order non-linear optical material (2000-01-11),
14. 5327583 - Using a clock signal generated by a microcomputer for providing a (1994-07-05),
15. 4612561 - Parallel-connected gate turn-off thyristors (1986-09-16),

Title: The Innovations of Shinji Yamada

Introduction

Shinji Yamada is a prominent inventor based in Tsukuba, Japan. He has made significant contributions to the field of materials science, particularly in the development of low softening point glass compositions. With a total of 15 patents to his name, Yamada's work has had a substantial impact on various industries.

Latest Patents

Yamada's latest patents include a low softening point glass composition and a bonding material using the same. This innovative glass composition is notable for being substantially free from lead, bismuth, and antimony. It comprises oxides of vanadium, phosphorus, tellurium, and iron, with a softening point of 380°C or lower. This advancement is crucial for electronic parts, as it enhances the safety and efficiency of materials used in technology.

Career Highlights

Throughout his career, Shinji Yamada has worked with esteemed companies such as Hitachi, Ltd. and Hitachi Powdered Metals Co., Ltd. His experience in these organizations has allowed him to refine his expertise in materials development and innovation.

Collaborations

Yamada has collaborated with notable colleagues, including Satoru Amou and Takao Ishikawa. These partnerships have contributed to the advancement of his research and the successful development of his patented technologies.

Conclusion

Shinji Yamada's contributions to the field of materials science, particularly through his innovative glass compositions, highlight his role as a leading inventor. His work continues to influence the industry and pave the way for future advancements.

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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