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For the Inventor, By the Inventor

Otsu, Japan

Tsutomu Tatekawa

This inventor holds 12 USPTO granted patents and 1 EPO patent. Top assignee: Murata Manufacturing Co., Ltd.. Active years: 2000-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tsutomu Tatekawa. Retrieved from https://idiyas.com/inventor/tsutomu-tatekawa

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

USPTO Granted Patents = 12

% Patents Active = 66.7


Average Co-Inventor Count = 2.2

ph-index = 3

Forward Citations = 40(Granted Patents)


Location History:

  • Otsu, JP (2000 - 2013)
  • Nagaokakyo, JP (2013)

Company Filing History:

goldMedal12 out of 13,796 
 
Murata Manufacturing Co., Ltd.
 patents

Years Active: 2000-2013

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12 patents (USPTO):Explore Patents
1. 8476179 - Grain boundary-insulated semiconductor ceramic, semiconductor ceramic capacitor, and method for producing semiconductor ceramic capacitor (2013-07-02),
2. 8361918 - Ceramic composition, method for producing the same, ceramic substrate and method for producing ceramic green layer (2013-01-29),
3. 7056852 - High-frequency dielectric ceramic composition, dielectric resonator, dielectric filter, dielectric duplexer and communication system (2006-06-06),
4. 6940371 - High frequency dielectric ceramic composition, dielectric resonator, dielectric filter, dielectric duplexer, and communication device (2005-09-06),
5. 6649553 - Dielectric ceramic composition, dielectric ceramic compact and electronic component including the same (2003-11-18),
6. 6569795 - High frequency dielectric ceramic compact, dielectric resonator, dielectric filter, dielectric duplexer, and communication apparatus (2003-05-27),
7. 6549094 - High frequency ceramic compact, use thereof, and method of producing the same (2003-04-15),
8. 6487427 - Dielectric resonator, dielectric filter, dielectric duplexer, and communications device having specific dielectric and superconductive compositions (2002-11-26),
9. 6380115 - High-frequency dielectric ceramic composition, dielectric resonator, dielectric filter, dielectric duplexer, and communication apparatus (2002-04-30),
10. 6369669 - Rare-earth ceramic filter (2002-04-09),
11. 6245702 - High-frequency dielectric ceramic composition, dielectric resonator, dielectric filter, dielectric duplexer and communication device (2001-06-12),
12. 6143697 - Method for producing superconducting thick film (2000-11-07),

Title: Tsutomu Tatekawa: Innovator in Semiconductor Ceramics

Introduction

Tsutomu Tatekawa is a prominent inventor based in Otsu, Japan. He has made significant contributions to the field of semiconductor ceramics, holding a total of 12 patents. His work focuses on developing advanced materials that enhance the performance of electronic components.

Latest Patents

Among his latest patents are innovations such as the grain boundary-insulated semiconductor ceramic and the semiconductor ceramic capacitor. The grain boundary-insulated semiconductor ceramic features a SrTiO-based compound as its main component, along with a diffusing agent that includes a grain boundary insulating agent and a glass component. This innovative material is designed to be free of lead, ensuring environmental safety. Additionally, Tatekawa has developed a ceramic composition that boasts minimal compositional variation after burning, high flexural strength, and a high Q value in the microwave band.

Career Highlights

Tsutomu Tatekawa has dedicated his career to advancing semiconductor technology. His work at Murata Manufacturing Co., Ltd. has positioned him as a key player in the development of high-performance electronic materials. His inventions have not only contributed to the company's success but have also influenced the broader field of electronics.

Collaborations

Throughout his career, Tatekawa has collaborated with notable colleagues, including Hitoshi Takagi and Mizuki Kono. These partnerships have fostered innovation and have led to the successful development of various semiconductor technologies.

Conclusion

Tsutomu Tatekawa's contributions to semiconductor ceramics exemplify the impact of innovative thinking in technology. His patents and collaborations continue to shape the future of electronic materials, making him a significant figure in the industry.

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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