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For the Inventor, By the Inventor

Ushiku, Japan

Ei Takahashi

This inventor holds 19 USPTO granted patents and 1 published patent application and 2 EPO patents, primarily in Construction Machinery. Top assignees: Hitachi Construction Machinery Co., Ltd., Kcm Corporation, Tcm Co., Ltd.. Active years: 1999-2022.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Ei Takahashi. Retrieved from https://idiyas.com/inventor/ei-takahashi

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

USPTO Granted Patents = 19 

% Patents Active = 100.0

 

Average Co-Inventor Count = 4.9

ph-index = 13

Forward Citations = 371(Granted Patents)


Location History:

  • Tutchiura, JP (2001)
  • Tsuchiura, JP (1999 - 2007)
  • Ushiku, JP (2012 - 2014)
  • Ibaraki, JP (2019 - 2022)

Company Filing History:

goldMedal19 out of 1,508 
 
Hitachi Construction Machinery Co., Ltd.
 patents
silverMedal3 out of 35 
 
Kcm Corporation
 patents
bronzeMedal1 out of 1 
 
Tcm Co., Ltd.
 patent
where one patent can have more than one assignee

Years Active: 1999-2022

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Areas of Expertise:
Construction Machine
Excavator
Hydraulic Drive
Operator Cab
Control Device
Wheel Loader
Engine Control
Auto-Acceleration
Joint Pin Lock
Interference Prevention
Console Box
Steering Device
19 patents (USPTO):Explore Patents
1. D969173 - Portion of a counterweight for construction machine (2022-11-08),
2. D915470 - Excavator (2021-04-06),
3. D857755 - Seat for operator cab for construction machine (2019-08-27),
4. D856381 - Console box for construction machine (2019-08-13),
5. D856380 - Console box for construction machine (2019-08-13),
6. D856379 - Air conditioning duct cover with monitor for construction machine (2019-08-13),
7. D854587 - Cab for construction machine (2019-07-23),
8. 8899129 - Steering device for construction machine (2014-12-02),
9. 8744702 - Work vehicle control device (2014-06-03),
10. D652433 - Portion of console for construction machine (2012-01-17),
11. D652063 - Console for construction machine (2012-01-10),
12. D652061 - Wheel loader (2012-01-10),
13. D549738 - Wheel loader (2007-08-28),
14. 6273632 - Joint pin lock mechanism for pivotal pin joint (2001-08-14),
15. 6230090 - Interference prevention system for two-piece boom type hydraulic excavator (2001-05-08),

Title: Innovator Profile: Ei Takahashi from Ushiku, Japan

Introduction

Ei Takahashi is a prominent inventor based in Ushiku, Japan, known for his significant contributions to the field of construction machinery. With a remarkable record of 19 patents, his work primarily focuses on enhancing the functionality and efficiency of excavators.

Latest Patents

One of his latest inventions includes an innovative design for a portion of a counterweight for construction machines. This advancement aims to improve the stability and performance of excavators, showcasing his commitment to driving innovation in the machinery sector.

Career Highlights

Ei Takahashi has had an illustrious career, having worked with well-respected companies such as Hitachi Construction Machinery Co., Ltd. and KCM Corporation. His work at these firms has played a crucial role in advancing construction technology, helping to shape modern machinery solutions.

Collaborations

Throughout his career, Takahashi has collaborated with talented professionals in the field, including his coworkers Atsushi Ninomiya and Yusuke Daimon. These partnerships have fostered an environment of innovation and creativity, enabling the development of groundbreaking technologies in construction machinery.

Conclusion

In summary, Ei Takahashi's inventive spirit and dedication to improving construction machinery through his patents have established him as a key figure in the industry. His continuous efforts to innovate reflect a commitment to enhancing the capabilities of excavators, benefiting the construction sector as a whole.

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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