Yokohama, Japan

Tetsuo Takehara

This inventor holds 6 USPTO granted patents and 4 published patent applications. Top assignee: Asahi Glass Company, Limited. Active years: 1988-1993.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tetsuo Takehara. Retrieved from https://idiyas.com/inventor/tetsuo-takehara

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

Calculating rank
USPTO Granted Patents = 6 

% Patents Active = 100.0

Average Co-Inventor Count = 3.4

ph-index = 5

Forward Citations = 122(Granted Patents)


Location History:

  • Yokohama, JP (1988 - 1989)
  • Kawasaki, JP (1989)
  • Tokyo, JP (1993)

Company Filing History:


Years Active: 1988-1993

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6 patents (USPTO):Explore Patents

Title: Innovations by Tetsuo Takehara: Advancements in Quartz Glass Technology

Introduction: Tetsuo Takehara, an accomplished inventor based in Yokohama, Japan, holds six patents to his name. His work primarily focuses on advancements in liquid heating apparatuses and joint structures for tube support plates, contributing substantially to the field of materials technology and electronics.

Latest Patents: Among his latest innovative patents, the "Quartz Glass Tube Liquid Heating Apparatus with Concentric Flow Paths" stands out. This apparatus features a sophisticated design that includes a flow path surrounded by a quartz glass tube within a tubular ceramic heater, which utilizes infrared radiation and exhibits a positive temperature coefficient (PTC) characteristic. This compact device effectively heats purified water without contamination, making it particularly valuable for electronics manufacturing. Additionally, Tetsuo's "Joint Structure for a Tube Support Plate and a Tube" patent details a design that incorporates a ceramic tube aligned with a retaining hole of a cooled tube support plate, enhanced by a bellows mechanism for flexibility and robustness.

Career Highlights: Tetsuo Takehara is an integral member of Asahi Glass Company, Limited, where he leverages his expertise in materials and engineering. His innovative patents reflect his commitment to quality and efficiency, particularly in the production of electronics-related products. Over his career, he has significantly influenced advancements in ceramic and glass technologies, demonstrating a pattern of innovation that aligns closely with industry needs.

Collaborations: Throughout his career, Tetsuo has collaborated with notable colleagues, including Noriyuki Oda and Katsumi Higashi. These partnerships highlight a collaborative spirit in research and development, contributing to breakthroughs in glass technology and practical applications in electronics.

Conclusion: Tetsuo Takehara's contributions to innovation in the field of quartz glass technology are noteworthy and impactful. With a solid patent portfolio that underscores his inventive spirit, he continues to push the boundaries of engineering for better manufacturing processes. His work not only reinforces the importance of innovation in electronics but also exemplifies the collaborative efforts that drive technological progress.

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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