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For the Inventor, By the Inventor

Fuchu, Japan

Noriyoshi Yamauchi

This inventor holds 10 USPTO granted patents. Top assignee: Ryobi Limited. Active years: 1988-1995.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Noriyoshi Yamauchi. Retrieved from https://idiyas.com/inventor/noriyoshi-yamauchi

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

USPTO Granted Patents = 10

% Patents Active = 100.0

Average Co-Inventor Count = 2.8

ph-index = 6

Forward Citations = 117(Granted Patents)


Location History:

  • Hiroshima, JP (1988)
  • Fuchu, JP (1989 - 1995)

Company Filing History:

goldMedal10 out of 546 
 
Ryobi Limited
 patents

Years Active: 1988-1995

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10 patents (USPTO):Explore Patents
1. 5460218 - Method for discharging gas out of metal molds and apparatus therefor (1995-10-24),
2. 5390724 - Low pressure die-casting machine and low pressure die-casting method (1995-02-21),
3. 5379826 - Apparatus for detecting defects at gas exhaust line in casting machine (1995-01-10),
4. 5361826 - Laminar flow injection molding apparatus and laminar flow injection (1994-11-08),
5. 5285934 - Automatic molten metal supplying device (1994-02-15),
6. 5285841 - Metal mold cooling device (1994-02-15),
7. 5250103 - Automatic molten metal supplying device and method for supplying the (1993-10-05),
8. 4986338 - Gas venting arrangement in high speed injection molding apparatus and (1991-01-22),
9. 4852634 - Gas venting arrangement in injection molding apparatus and method for (1989-08-01),
10. 4722385 - Deflator for use in injection molding machine (1988-02-02),

Title: Noriyoshi Yamauchi: Innovator in Metal Casting Technology

Introduction

Noriyoshi Yamauchi is a prominent inventor based in Fuchu, Japan. He has made significant contributions to the field of metal casting technology, holding a total of 10 patents. His innovative approaches have enhanced the efficiency and safety of metal casting processes.

Latest Patents

Yamauchi's latest patents include a "Method for discharging gas out of metal molds and apparatus therefor." This invention provides a method and apparatus capable of continuously discharging contaminated gas generated prior to the casting step. The system includes a gas vent valve connected to a suction unit and a vacuum pump, allowing for the replacement of contaminated gas with clean air. This innovation helps prevent vapor explosions by removing moisture from the mold cavity during the injection molding process.

Another notable patent is the "Low pressure die-casting machine and low pressure die-casting method." This invention features a ladle unit and a molten metal pressurizing unit that can switch between supplying compressed air to discharge molten metal and isolating the ladle to retain the molten metal. The controller connected to these units allows for precise operation, enhancing the overall efficiency of the die-casting process.

Career Highlights

Yamauchi is currently employed at Ryobi Limited, where he continues to develop innovative solutions in metal casting technology. His work has significantly impacted the industry, leading to advancements in manufacturing processes.

Collaborations

Throughout his career, Yamauchi has collaborated with notable colleagues, including Hitoshi Ishida and Kazuaki Kawai. These partnerships have fostered a creative environment that encourages innovation and the development of new technologies.

Conclusion

Noriyoshi Yamauchi's contributions to metal casting technology through his patents and collaborations have established him as a key figure in the industry. His innovative methods continue to influence the field, ensuring safer and more efficient manufacturing processes.

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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