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For the Inventor, By the Inventor

Sakai, Japan

Kazuaki Kurohara

This inventor holds 26 USPTO granted patents, primarily in Lawn Mower Technology. Top assignee: Kubota Corporation. Active years: 1981-2011.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuaki Kurohara. Retrieved from https://idiyas.com/inventor/kazuaki-kurohara

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

Calculating rank
USPTO Granted Patents = 26

% Patents Active = 100.0

Average Co-Inventor Count = 4.5

ph-index = 11

Forward Citations = 349(Granted Patents)


Location History:

  • Sakai, JP (1981 - 2011)
  • Osaka, JP (1999 - 2011)

Company Filing History:

goldMedal26 out of 2,916 
 
Kubota Corporation
 patents

Years Active: 1981-2011

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Areas of Expertise:
Mower Unit
Grass Collector
Riding Mower
Engine Enclosure
Cooling System
Power Steering
Lawn Tractor
Transmission
HST
Grass Catcher
Engine Control
Hitch Attachment
26 patents (USPTO):Explore Patents
1. 8028508 - Mower unit (2011-10-04),
2. 7905080 - Grass collector for a mower (2011-03-15),
3. 7607284 - Riding-type mower vehicle (2009-10-27),
4. 7565790 - Grass collector for a mower (2009-07-28),
5. 7543435 - Mower unit (2009-06-09),
6. 7162853 - Lawn mower having HST (2007-01-16),
7. 6837324 - Engine enclosure (2005-01-04),
8. 6513312 - Mower with a grass catcher (2003-02-04),
9. 6122903 - Apparatus for raising and lowering a mower unit (2000-09-26),
10. 5887671 - Working vehicle with power steering (1999-03-30),
11. 5873224 - Power transmitting structure for a self-propelling vehicle having a (1999-02-23),
12. 5718303 - Engine hood construction of work vehicle (1998-02-17),
13. 5689953 - Cooling system for a liquid-cooled engine (1997-11-25),
14. 5560188 - Lawn tractor having a blower unit and a grass clippings transport duct (1996-10-01),
15. 5542243 - Lawn tractor having a blower unit and a grass clippings transport duct (1996-08-06),

Title: Innovator Spotlight: Kazuaki Kurohara

Introduction: Kazuaki Kurohara, an inventive mind hailing from Sakai, Japan, has made significant strides in the field of agricultural machinery. With a total of 26 patents to his name, Kurohara continues to push the boundaries of innovation within the industry, contributing valuable insights and inventions that streamline mowing processes.

Latest Patents: Among Kurohara's latest innovations are two notable patents focused on optimizing mower performance. The first, a mower unit, features a unique design that includes a housing and a pair of cutting blades arranged vertically within. These blades rotate in opposite directions and are complemented by an innovative baffle that guides air flows generated during operation. This design enhances the overall efficiency of the mower.

Additionally, he developed a grass collector intended for riding-type mowers. This grass collector is designed to attach to the rear of the mower, effectively receiving cut grass through a dedicated duct. It consists of a front container section with a rearwardly facing opening, supported by a pivotable rear container section. This allows for convenient disposal of grass clippings, reflecting Kurohara's commitment to user-friendly design.

Career Highlights: Kazuaki Kurohara currently works for Kubota Corporation, a leader in agricultural and construction machinery manufacturing. His tenure at the company has allowed him to utilize his creative engineering skills, leading to a series of practical innovations that enhance mower functionality and efficiency.

Collaborations: Throughout his career, Kurohara has collaborated with esteemed colleagues, including Nobuyuki Yamashita and Hiroyuki Ogasawara. Their shared expertise and collaborative efforts have played a critical role in the development of various innovative solutions, further advancing the capabilities of agricultural equipment.

Conclusion: Kazuaki Kurohara stands out as a prominent inventor whose contributions to agricultural machinery help to reshape the landscape of mowing technology. With an impressive portfolio of patents and noteworthy collaborations, Kurohara's inventive spirit continues to propel the industry forward, ensuring that efficient and effective mowing solutions remain at the forefront of agricultural innovation.

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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