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For the Inventor, By the Inventor

Moriyama, Japan

Takuya Sawada

This inventor holds 17 USPTO granted patents and 1 EPO patent. Top assignee: Murata Manufacturing Co., Ltd.. Active years: 2001-2010.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takuya Sawada. Retrieved from https://idiyas.com/inventor/takuya-sawada

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

USPTO Granted Patents = 17

% Patents Active = 70.6


Average Co-Inventor Count = 3.7

ph-index = 3

Forward Citations = 31(Granted Patents)


Location History:

  • Nagaokakyo, JP (2003)
  • Lausanne, CH (2003 - 2004)
  • Moriyama, JP (2001 - 2010)

Company Filing History:

goldMedal17 out of 13,796 
 
Murata Manufacturing Co., Ltd.
 patents

Years Active: 2001-2010

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17 patents (USPTO):Explore Patents
1. 7750541 - Piezoelectric ceramic and method for making the same, and piezoelectric resonator and method for making the same (2010-07-06),
2. 6734606 - Piezoelectric ceramic composition and piezoelectric ceramic element using the same (2004-05-11),
3. 6700303 - Piezoelectric element (2004-03-02),
4. 6690246 - Oscillator and production method therefor (2004-02-10),
5. 6558567 - Piezoelectric ceramic compact and piezoelectric ceramic device using the same (2003-05-06),
6. 6548941 - Piezoelectric element (2003-04-15),
7. 6534902 - Piezoelectric device (2003-03-18),
8. 6515401 - Piezoelectric resonator (2003-02-04),
9. 6488864 - Piezoelectric ceramic compact and piezoelectric ceramic device (2002-12-03),
10. 6445110 - Piezoelectric device (2002-09-03),
11. 6423244 - Piezoelectric ceramic composition and piezoelectric ceramic device using the same (2002-07-23),
12. 6391223 - Piezoelectric ceramic composition and piezoelectric ceramic element using the same (2002-05-21),
13. 6383411 - Piezoelectric ceramic composition and piezoelectric ceramic device using the same (2002-05-07),
14. 6372152 - Piezoelectric ceramic composition and ceramic piezoelectric device employing the composition (2002-04-16),
15. 6369488 - Piezoelectric device (2002-04-09),

Title: Takuya Sawada: Innovator in Piezoelectric Ceramics

Introduction

Takuya Sawada is a prominent inventor based in Moriyama, Japan. He has made significant contributions to the field of piezoelectric ceramics, holding a total of 17 patents. His work focuses on enhancing the performance and characteristics of piezoelectric materials, which are essential in various electronic applications.

Latest Patents

Among his latest patents are innovations related to piezoelectric ceramics and resonators. One notable patent describes a piezoelectric ceramic whose resonance frequency temperature characteristic can be easily adjusted. This invention includes first and second parts that can be alternately stacked in layers. Each part is composed of a compound with a bismuth layer structure, such as a complex oxide containing at least strontium (Sr), bismuth (Bi), and niobium (Nb). The differing degrees of c-axis orientation in these parts allow for the resonance frequency temperature characteristics to be adjusted effectively.

Another significant patent involves a piezoelectric ceramic composition that includes a bismuth layered compound containing Sr, Bi, Nb, and a metal element other than Bi with a valence of 3. This composition meets specific relational expressions that ensure the bismuth content is equal to or less than the stoichiometric value, making it suitable for piezoelectric ceramic elements with a sufficient Q-factor for practical use.

Career Highlights

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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