Ishioka, Japan

Kazuhisa Tamura

This inventor holds 7 USPTO granted patents and 2 EPO patents. Top assignee: Hitachi Construction Machinery Co., Ltd.. Active years: 1997-2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuhisa Tamura. Retrieved from https://idiyas.com/inventor/kazuhisa-tamura-a4cflusu

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 = 5.0

ph-index = 6

Forward Citations = 104(Granted Patents)


Location History:

  • Ibaraki, JP (2006)
  • Ishioka, JP (1997 - 2012)

Company Filing History:


Years Active: 1997-2012

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7 patents (USPTO):Explore Patents

Title: Kazuhisa Tamura: Innovator in Construction Machinery

Introduction

Kazuhisa Tamura is a notable inventor based in Ishioka, Japan. He has made significant contributions to the field of construction machinery, holding a total of 7 patents. His innovative designs focus on enhancing the functionality and maintenance of construction equipment.

Latest Patents

One of his latest patents involves a construction machine that features a counterweight attached to the rear side of a revolving frame. An engine is mounted in a transverse direction in front of the counterweight, with a heat exchanger located on the left side of the engine. A left-hand side door is positioned next to the heat exchanger, allowing for easy access to an air cleaner housed in an air cleaner chamber. This design simplifies maintenance by enabling the filter element to be drawn out through an opening in the casing simply by opening the left-hand side door. Another significant patent is for a rotating apparatus for a construction machine that includes a swing mechanism with a grease bath seal. This grease bath is designed to prevent the intrusion of pollutants and foreign materials, thereby improving the durability and effectiveness of the seal over time.

Career Highlights

Kazuhisa Tamura works at Hitachi Construction Machinery Co., Ltd., where he has been instrumental in developing advanced machinery solutions. His work has not only improved the efficiency of construction equipment but has also focused on user-friendly maintenance features.

Collaborations

Throughout his career, Tamura has collaborated with notable colleagues such as Tsuyoshi Sakyo and Toichi Hirata. Their combined expertise has contributed to the successful development of innovative machinery solutions.

Conclusion

Kazuhisa Tamura's contributions to construction machinery through his patents reflect his commitment to innovation and efficiency. His work continues to influence the industry, making significant strides in the design and functionality of construction equipment.

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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