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For the Inventor, By the Inventor

Saitama, Japan

Hiroaki Yamada

This inventor holds 12 USPTO granted patents. Top assignees: Nihon Dempa Kogyo Co., Ltd., Nisshin Flour Milling Co., Ltd., Okabe Company, Inc.. Active years: 1989-2017.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroaki Yamada. Retrieved from https://idiyas.com/inventor/hiroaki-yamada-7pbpc0rb

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 = 2.6

ph-index = 4

Forward Citations = 85(Granted Patents)


Location History:

  • Kawagoe, JP (1989)
  • Ohi, JP (1993)
  • Saitama-ken, JP (1998)
  • Sayama, JP (2015)
  • Saitama, JP (1991 - 2017)

Company Filing History:

goldMedal5 out of 631 
 
Nihon Dempa Kogyo Co., Ltd.
 patents
silverMedal5 out of 200 
 
Nisshin Flour Milling Co., Ltd.
 patents
bronzeMedal2 out of 9 
 
Okabe Company, Inc.
 patents

Years Active: 1989-2017

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12 patents (USPTO):Explore Patents
1. 9543923 - Crystal resonator including blank and supporting portion (2017-01-10),
2. 9209379 - Piezoelectric vibration element and piezoelectric device (2015-12-08),
3. 9106200 - Piezoelectric vibrating piece and piezoelectric device (2015-08-11),
4. 8957569 - GT-cut quartz crystal resonator (2015-02-17),
5. 8053953 - Electronic component for surface mounting (2011-11-08),
6. 5847123 - Imide derivatives for inhibiting the production of interleukin-1.beta. (1998-12-08),
7. 5250526 - Pyridinecarboxylic acid amide derivatives and pharmaceutical (1993-10-05),
8. 5135154 - Reusable stud welding ferrule containing boron nitride (1992-08-04),
9. 5049717 - Arc stud welding machine (1991-09-17),
10. 5025012 - Nicotinic acid derivatives and pharmaceutical compositions comprising (1991-06-18),
11. 4994456 - Pyridinecarboxylic acid amide derivatives and pharmaceutical (1991-02-19),
12. 4886803 - Benzimidazole derivatives (1989-12-12),

Title: Hiroaki Yamada: Innovator in Crystal Resonators and Piezoelectric Devices

Introduction

Hiroaki Yamada is a prominent inventor based in Saitama, Japan. He has made significant contributions to the field of crystal resonators and piezoelectric devices, holding a total of 12 patents. His innovative work has advanced the technology used in various electronic applications.

Latest Patents

One of Yamada's latest patents is a crystal resonator that includes a blank and a supporting portion. This resonator is designed to optimize vibration characteristics by carefully cutting the crystal and positioning the supporting portion to minimize displacement during operation. Another notable patent involves a piezoelectric vibration element that features a unique design with a mesa portion, allowing for enhanced performance in piezoelectric devices. This design includes excitation and extraction electrodes that are strategically placed to improve functionality.

Career Highlights

Throughout his career, Hiroaki Yamada has worked with notable companies such as Nisshin Flour Milling Co., Ltd. and Nihon Dempa Kogyo Co., Ltd. His experience in these organizations has contributed to his expertise in developing advanced technologies in his field.

Collaborations

Yamada has collaborated with several talented individuals, including Toshiji Sugai and Katsutoshi Miura. These partnerships have fostered innovation and creativity in his projects.

Conclusion

Hiroaki Yamada's contributions to the fields of crystal resonators and piezoelectric devices highlight his role as a leading inventor. His patents reflect a commitment to advancing technology and improving electronic applications.

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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