Tokyo, Japan

Kazuhisa Nishigai

This inventor holds 4 USPTO granted patents. Top assignee: Bridgestone Corporation. Active years: 1989-1996.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuhisa Nishigai. Retrieved from https://idiyas.com/inventor/kazuhisa-nishigai

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


% Patents Active = 100.0

Average Co-Inventor Count = 2.7

ph-index = 2

Forward Citations = 21(Granted Patents)


Location History:

  • Tokyo, JP (1989 - 1990)
  • Saitama, JP (1995)
  • Saitama-ken, JP (1996)

Company Filing History:


Years Active: 1989-1996

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4 patents (USPTO):Explore Patents

Title: Kazuhisa Nishigai: Innovator in Extrusion Technology

Introduction

Kazuhisa Nishigai is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of extrusion technology, holding a total of 4 patents. His innovative designs have improved the efficiency and effectiveness of double-shaft extruding devices.

Latest Patents

Nishigai's latest patents include a screw for a double-shaft extruding device and the double-shaft extruding device itself. The screw features a shaft with a spiral flight located at its outer periphery. The height of the flight from the axis of the shaft remains substantially constant. Additionally, the angle of torsion of the spiral flight decreases toward the shaft's distal end. The cross-sectional area of extrusion formed by the shaft and the flight continuously increases from the distal end to the proximal end, allowing for smooth discharge and complete extrusion of materials.

Career Highlights

Kazuhisa Nishigai is currently employed at Bridgestone Corporation, where he continues to develop innovative solutions in extrusion technology. His work has garnered attention for its practical applications and efficiency improvements in manufacturing processes.

Collaborations

Nishigai has collaborated with notable coworkers, including Toshiro Iwata and Iwami Nagata. Their combined expertise has contributed to advancements in their field.

Conclusion

Kazuhisa Nishigai's contributions to extrusion technology exemplify the impact of innovation in manufacturing. His patents reflect a commitment to enhancing efficiency and effectiveness 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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