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For the Inventor, By the Inventor

Tokyo, Japan

Hiroomi Yamanaka

This inventor holds 4 USPTO granted patents. Top assignee: Kabushiki Kaisha Nichibei. Active years: 1984-2002.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroomi Yamanaka. Retrieved from https://idiyas.com/inventor/hiroomi-yamanaka

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

USPTO Granted Patents = 4

% Patents Active = 100.0

Average Co-Inventor Count = 3.3

ph-index = 4

Forward Citations = 175(Granted Patents)


Location History:

  • Chiba, JP (1984)
  • Tokyo, JP (1995 - 2002)

Company Filing History:

goldMedal4 out of 12 
 
Kabushiki Kaisha Nichibei
 patents

Years Active: 1984-2002

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4 patents (USPTO):Explore Patents
1. 6378594 - Roll screen (2002-04-30),
2. 5787951 - Roman shade (1998-08-04),
3. 5423367 - Blind with two-part angular slats having cord passing slots formed only (1995-06-13),
4. 4466475 - Device for driving and stopping a roll blind (1984-08-21),

Title: Hiroomi Yamanaka: Innovator in Screen Technology

Introduction

Hiroomi Yamanaka is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of screen technology, holding a total of 4 patents. His innovative designs have enhanced the functionality and aesthetics of various screen applications.

Latest Patents

Yamanaka's latest patents include a roll screen and a Roman shade. The roll screen features side plates, a winding pipe that is rotatably supported, and a spring that allows the screen to be wound by the accumulated force of the spring. Additionally, it includes a brake that decreases the winding speed of the screen during the final stages of winding. The Roman shade consists of an opaque or semitransparent rear sheet that hangs from a head rail, weighted at the bottom by a ballast. Front sheets are hung from the rear sheet, allowing for adjustable openings and folds, enhancing both functionality and design.

Career Highlights

Yamanaka is associated with Kabushiki Kaisha Nichibei, where he has been instrumental in developing innovative screen solutions. His work has garnered attention for its practicality and design elegance.

Collaborations

He has collaborated with notable coworkers, including Akira Sone and Hideaki Tonomura, contributing to the advancement of screen technology through teamwork and shared expertise.

Conclusion

Hiroomi Yamanaka's contributions to screen technology through his patents reflect his innovative spirit and dedication to enhancing everyday products. His work continues to influence the industry and inspire future inventions.

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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