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For the Inventor, By the Inventor

Yokohama, Japan

Toshihiro Ifuku

This inventor holds 64 USPTO granted patents and 5 published patent applications and 21 EPO patents, primarily in Piezoelectric Technology (CPC class C04B). Top assignees: Canon Kabushiki Kaisha, Tokyo Institute of Technology, National Institute of Advanced Industrial Science and Technology. Active years: 2005-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshihiro Ifuku. Retrieved from https://idiyas.com/inventor/toshihiro-ifuku

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

USPTO Granted Patents = 64 

% Patents Active = 45.3

 

Average Co-Inventor Count = 4.8

ph-index = 9

Forward Citations = 291(Granted Patents)

Forward Citations (Not Self Cited) = 209(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Kanagawa, JP (2005 - 2009)
  • Kangawa, JP (2011)
  • Yokohama, JP (2007 - 2020)

Company Filing History:

goldMedal64 out of 92,994 
 
Canon Kabushiki Kaisha
 patents
silverMedal8 out of 591 
 
Tokyo Institute of Technology
 patents
bronzeMedal5 out of 1,765 
 
National Institute of Advanced Industrial Science and Technology
 patents
4. 4 out of 100 
 
University of Yamanashi
 patents
5. 3 out of 3 
 
Sophia University
 patents
6. 2 out of 870 
 
Kyoto University
 patents
7. 2 out of 141 
 
Tokyo University of Science Foundation
 patents
8. 4 out of 834,513 
Other
 patents
where one patent can have more than one assignee

Years Active: 2005-2025

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Areas of Expertise:
Piezoelectric Element
Ultrasonic Motor
Dust Removal Device
Liquid Discharge Head
Vibration Wave Motor
Optical Apparatus
Manufacturing Method
Ceramic Production
Driving Control System
Piezoelectric Material
Imaging Apparatus
Dielectric Film Structure
64 patents (USPTO):Explore Patents
1. 12292368 - Evaluation method, substrate processing apparatus, manufacturing method of substrate processing apparatus and article manufacturing method (2025-05-06),
2. 10727395 - Piezoeletric material, piezoelectric element, liquid discharge head, liquid discharge apparatus, vibration wave motor, optical instrument, vibration apparatus, dust removing apparatus, imaging apparatus and electronic device (2020-07-28),
3. 10280119 - Piezoelectric ceramic, method for making the same, piezoelectric element, liquid discharge head, ultrasonic motor, and dust cleaner (2019-05-07),
4. 10038394 - Vibration wave drive device, stator for a vibration wave motor, vibration wave motor, driving control system, optical apparatus, and manufacturing method of a vibration wave driving device (2018-07-31),
5. 9893269 - Piezoelectric element, stator for oscillatory wave motor, oscillatory wave motor, driving control system, optical apparatus, and method for making stator for oscillatory wave motor (2018-02-13),
6. 9871471 - Oscillatory wave drive device and optical apparatus (2018-01-16),
7. 9842985 - Manufacturing method for piezoelectric ceramics (2017-12-12),
8. 9825213 - Piezoelectric element, liquid discharge head, ultrasonic motor, and dust removing device (2017-11-21),
9. 9614140 - Piezoelectric ceramic, method for making same, piezoelectric element, liquid discharge head, ultrasonic motor, and dust cleaner (2017-04-04),
10. 9571709 - Dust removing device and dust removing method (2017-02-14),
11. 9543501 - Metal oxide (2017-01-10),
12. 9519140 - Dust removing device, manufacturing method for same, and image pickup apparatus (2016-12-13),
13. 9413928 - Dust removal apparatus and image pickup apparatus (2016-08-09),
14. 9412931 - Piezoelectric ceramics, piezoelectric element, liquid ejection head, ultrasonic motor, and dust removing device (2016-08-09),
15. 9252685 - Dust removing device and imaging device (2016-02-02),

Title: **Toshihiro Ifuku: Innovator in Piezoelectric Materials**

Introduction

Toshihiro Ifuku is a prominent inventor based in Yokohama, Japan, known for his significant contributions to the field of piezoelectric materials and devices. With a remarkable portfolio of 63 patents, his work has paved the way for advancements in various technological applications.

Latest Patents

Among his latest innovations, Ifuku has developed several groundbreaking patents including piezoelectric materials, piezoelectric elements, liquid discharge heads, liquid discharge apparatuses, vibration wave motors, and advanced optical instruments. Notable patents also encompass the design of dust removing apparatuses, imaging apparatuses, and electronic devices utilizing piezoelectric materials composed of perovskite-type metal oxides. His work on a specific piezoelectric material, characterized by the general formula relating to barium titanate and other metal elements, highlights his commitment to improving piezoelectric properties and mechanical strength.

Career Highlights

Toshihiro Ifuku has had an illustrious career and worked with esteemed organizations such as Canon Inc. and the Tokyo Institute of Technology. His association with these institutions has allowed him to collaborate with leading researchers and industry experts, further enhancing his contributions to the field of innovation.

Collaborations

Throughout his career, Ifuku has collaborated with notable colleagues including Takanori Matsuda and Kenichi Takeda. These partnerships have been instrumental in driving innovative research and product development in piezoelectric technology.

Conclusion

In summary, Toshihiro Ifuku stands out as a significant inventor in the sphere of piezoelectric materials. His extensive patent portfolio demonstrates his dedication to innovation and his impact on various technologies. Through his collaborations and career achievements, Ifuku continues to inspire future developments in the field.

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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