Niigata, Japan

Chiaki Kato

This inventor holds 1 USPTO granted patent. Top assignee: Nihon Dempa Kogyo Co., Ltd.. Active years: 2000.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Chiaki Kato. Retrieved from https://idiyas.com/inventor/chiaki-kato-g2l1j1bx

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 6.0

ph-index = 1

Forward Citations = 1(Granted Patents)


Company Filing History:


Years Active: 2000

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1 patent (USPTO):Explore Patents

Title: Chiaki Kato: Innovator in Quartz Crystal Technology

Introduction

Chiaki Kato is a prominent inventor based in Niigata, Japan. She has made significant contributions to the field of quartz crystal technology. Her innovative work has led to the development of a unique quartz crystal element that addresses unwanted responses in quartz applications.

Latest Patents

Chiaki Kato holds a patent for a "Quartz crystal element using a thickness shear hexagonal quartz blank." This invention focuses on suppressing unwanted responses by utilizing a thickness shear quartz blank, such as an AT-cut type. The design allows for the elimination of areas where unwanted response may be strong by forming the quartz blank into a substantially hexagonal shape. The patent specifies that each pair of three pairs of opposite sides are mutually parallel, with one pair aligned to the longest diagonal line of the quartz blank. For the AT-cut type, the direction of the longest diagonal line is within the range of 28 degrees ±15 degrees or 118 degrees ±15 degrees from the Z' axis direction of the quartz blank. The quartz blank is held at the ends of the longest diagonal line.

Career Highlights

Chiaki Kato is associated with Nihon Dempa Kogyo Co., Ltd., a company known for its advancements in quartz crystal technology. Her work has been instrumental in enhancing the performance and reliability of quartz crystal elements used in various applications.

Collaborations

Chiaki has collaborated with notable colleagues, including Mitsuaki Koyama and Shigenori Watanabe. These collaborations have further enriched her research and development efforts in the field.

Conclusion

Chiaki Kato's innovative contributions to quartz crystal technology exemplify her dedication to advancing this field. Her patent and collaborative efforts highlight her role as a key inventor 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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