Fukaya, Japan

Hisafumi Okada

This inventor holds 2 USPTO granted patents. Top assignee: Tokyo Shibaura Denki Kabushiki Kaisha. Active years: 1982-1985.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hisafumi Okada. Retrieved from https://idiyas.com/inventor/hisafumi-okada

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 = 2.4

ph-index = 2

Forward Citations = 22(Granted Patents)


Location History:

  • Fukaya, JP (1982)
  • Hyogo, JP (1985)

Company Filing History:


Years Active: 1982-1985

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2 patents (USPTO):Explore Patents

Title: Hisafumi Okada: Innovator in Cathode-Ray Tube Technology

Introduction

Hisafumi Okada is a notable inventor based in Fukaya, Japan. He has made significant contributions to the field of cathode-ray tube technology, holding a total of 2 patents. His work has been instrumental in advancing the design and functionality of color picture tubes.

Latest Patents

Okada's latest patents include a "Glass envelope for a cathode-ray tube" and a "Color picture tube and method for magnetically adjusting the color." The glass envelope patent describes a design featuring a glass panel section with a rectangular faceplate, which has carefully established radii of curvature for optimal performance. The color picture tube patent outlines a vacuumed tube envelope that integrates a faceplate with phosphor strips, a funnel section, and an electron gun assembly. This innovative design also includes a shadow mask and an inner shield that work together to direct electron beams accurately towards the phosphor strips.

Career Highlights

Hisafumi Okada is associated with Tokyo Shibaura Denki Kabushiki Kaisha, a company known for its advancements in electrical and electronic equipment. His work there has contributed to the development of cutting-edge technologies in the field.

Collaborations

Okada has collaborated with notable coworkers such as Shigeo Takenaka and Yoshio Suzuki. Their combined expertise has fostered innovation and progress in their projects.

Conclusion

Hisafumi Okada's contributions to cathode-ray tube technology exemplify the impact of dedicated inventors in the field of electronics. His patents reflect a commitment to enhancing visual technology, making him a significant figure 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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