logo

For the Inventor, By the Inventor

Akishima, Japan

Shigehisa Hagura

This inventor holds 44 USPTO granted patents, primarily in Construction Machinery. Top assignees: Hitachi Construction Machinery Co., Ltd., Hitachi, Ltd., Hitachi Koki Co., Ltd.. Active years: 1992-2020.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigehisa Hagura. Retrieved from https://idiyas.com/inventor/shigehisa-hagura

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

Calculating rank
USPTO Granted Patents = 44

% Patents Active = 97.7

Average Co-Inventor Count = 6.0

ph-index = 19

Forward Citations = 901(Granted Patents)


Location History:

  • Kokubunji, JP (1994)
  • Akishima, JP (2000 - 2013)
  • Tokyo, JP (1992 - 2020)

Company Filing History:

goldMedal31 out of 1,508 
 
Hitachi Construction Machinery Co., Ltd.
 patents
silverMedal5 out of 42,743 
 
Hitachi, Ltd.
 patents
bronzeMedal2 out of 1,267 
 
Hitachi Koki Co., Ltd.
 patents
4. 2 out of 27 
 
Tcm Corporation
 patents
5. 1 out of 1 
 
Hitachi, Ltd., and Hitachi Video and Information Systems, Inc.
 patent
6. 3 out of 834,601 
Other
 patents

Years Active: 1992-2020

Loading Chart...
Areas of Expertise:
Excavator
Hydraulic Excavator
Construction Machine
Operator Cab
Weight System
Forklift
Duct Cover
Liquid Crystal Projector
Projection Lens
Cooling System
Console
44 patents (USPTO):Explore Patents
1. D875143 - Excavator (2020-02-11),
2. D857755 - Seat for operator cab for construction machine (2019-08-27),
3. D856379 - Air conditioning duct cover with monitor for construction machine (2019-08-13),
4. D854587 - Cab for construction machine (2019-07-23),
5. D798340 - Hydraulic excavator (2017-09-26),
6. D752651 - Excavator (2016-03-29),
7. D752113 - Excavator (2016-03-22),
8. D752112 - Excavator (2016-03-22),
9. D703908 - Forklift (2014-04-29),
10. D695791 - Hydraulic excavator (2013-12-17),
11. D693858 - Weight for a construction machine (2013-11-19),
12. D689530 - Portion of cab for construction machine (2013-09-10),
13. D689529 - Console for construction machine (2013-09-10),
14. D685009 - Portion of a hydraulic excavator (2013-06-25),
15. D685008 - Portion of a hydraulic excavator (2013-06-25),

Title: The Innovative Contributions of Shigehisa Hagura

Introduction

Shigehisa Hagura is a prominent inventor based in Akishima, Japan, with a remarkable portfolio of 44 patents to his name. His work primarily focuses on engineering and machinery, particularly within the construction equipment sector.

Latest Patents

Among his latest innovations, Hagura has developed patents for an excavator and a seat for the operator cab of construction machines. These inventions contribute significantly to enhancing operational efficiency and operator comfort in the machinery industry.

Career Highlights

Throughout his career, Shigehisa Hagura has been affiliated with notable companies, including Hitachi Construction Machinery Co., Ltd. and Hitachi, Ltd. His contributions to these organizations have been instrumental in advancing the technology and functionality of construction machinery.

Collaborations

Hagura has worked alongside skilled professionals such as Tomoyuki Miyata and Kazuhiko Hiraoka, fostering a collaborative environment that promotes innovation and the sharing of ideas in the field of mechanical engineering.

Conclusion

In summary, Shigehisa Hagura's innovative spirit and dedication to advancing construction machinery technology set him apart as a leading inventor. His extensive patent portfolio reflects his commitment to improving the industry, making significant strides for both his employers and the wider construction community.

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]
Loading…