Kawasaki, Japan

Yoshijuki Asahara

This inventor holds 1 USPTO granted patent. Top assignee: Hoya Glass Works, Ltd.. Active years: 1977.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshijuki Asahara. Retrieved from https://idiyas.com/inventor/yoshijuki-asahara

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 = 2.0

ph-index = 1

Forward Citations = 14(Granted Patents)


Company Filing History:


Years Active: 1977

Loading Chart...
1 patent (USPTO):Explore Patents

Title: The Innovations of Yoshijuki Asahara: Pioneering Glass-Based Technologies

Introduction: Yoshijuki Asahara is an innovative inventor based in Kawasaki, Japan, known for his contributions to glass technology. With a passion for developing advanced materials, he has made significant strides in the production of soft-edged aperture filters that showcase both functionality and aesthetic appeal.

Latest Patents: One of Asahara's most notable patents is the "Method for making a glass-based soft-edged aperture filters." This invention focuses on producing glass-based soft-edged aperture filters that exhibit excellent thermal stability. The unique process involves diffusing a coloring element, such as silver (Ag), into the glass to create a transmittance gradient in the colored portion. The specific glass composition includes a basic glass—such as silicate, borosilicate, or phosphate glass—combined with 1 to 10% by weight of arsenic trioxide (As₂O₃) and/or antimony trioxide (Sb₂O₃). This patented method exemplifies innovation within the glass industry.

Career Highlights: Asahara currently works at Hoya Glass Works, Ltd., a respected company specializing in optical glass and related technologies. His work there has played a crucial role in the development of cutting-edge glass products that serve various industries.

Collaborations: Throughout his career, Asahara has collaborated with fellow inventor Tetsuro Izumitani. Their partnership in the field of glass technology has been instrumental in enhancing the quality and functionality of their innovations, leading to advancements in manufacturing techniques.

Conclusion: Yoshijuki Asahara's contributions to the field of glass technology, particularly through his innovative patent for soft-edged aperture filters, highlight his dedication to advancing material science. His work at Hoya Glass Works, Ltd. and collaborations with other inventors underscore the importance of teamwork in driving innovation forward. Asahara's inventions not only improve product performance but also pave the way for future advancements in the glass 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]
Loading…