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For the Inventor, By the Inventor

Hyogo, Japan

Hirohiko Kawada

USPTO Granted Patents = 22 

Average Co-Inventor Count = 2.9

ph-index = 13

Forward Citations = 321(Granted Patents)


Location History:

  • Itami, JP (1996)
  • Amagasaki-shi, Hyogo, JP (2004 - 2007)
  • Amagasaki, JP (1998 - 2009)
  • Hyogo, JP (2008 - 2020)

Company Filing History:

goldMedal17 out of 540 
 
Kanzaki Kokyukoki Mfg. Co., Ltd.
 patents
silverMedal1 out of 17 
 
Tuff Torq Corporation
 patents
bronzeMedal5 out of 832,891 
Other
 patents
where one patent can have more than one assignee

Years Active: 1996-2020

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22 patents (USPTO):Explore Patents
1. 10638661 - Riding type vehicle (2020-05-05),
2. 7516685 - PTO transmission structure (2009-04-14),
3. 7431123 - Vehicle improved in steering (2008-10-07),
4. 7225704 - Transmission for a working vehicle (2007-06-05),
5. 7047839 - Power transmission arrangement of a working vehicle and transmission for the working vehicle (2006-05-23),
6. 6758112 - Power transmission arrangement of a working vehicle and transmission for the working vehicle (2004-07-06),
7. 6659216 - Vehicle improved steering (2003-12-09),
8. 6564891 - Power take-off assembly for working vehicles (2003-05-20),
9. 6547685 - Transaxle apparatus (2003-04-15),
10. 6524205 - Integral-type hydraulic and mechanical transaxle apparatus for driving and steering a vehicle (2003-02-25),
11. 6397966 - Vehicle improved in steering (2002-06-04),
12. 6312354 - Integral hydrostatic transaxle apparatus for driving and steering (2001-11-06),
13. 6237708 - Working vehicle (2001-05-29),
14. 6015362 - Differential gear assembly with disc-shaped input member (2000-01-18),
15. 6007449 - Differential locking system of axle driving apparatus (1999-12-28),

Title: **Innovations and Contributions of Hirohiko Kawada**

Introduction

Hirohiko Kawada, a prominent inventor based in Hyogo, Japan, holds an impressive portfolio of 22 patents. His innovative work primarily focuses on riding type vehicles and transmission structures, demonstrating his significant contributions to mechanical engineering and vehicle technology.

Latest Patents

Among his latest patents, the **Riding Type Vehicle** stands out. This vehicle features a driving source, left and right wheels, and a sophisticated transmission system designed to independently operate each wheel based on rotation direction and speed. It integrates caster wheels and employs sensors to detect obstacles, enhancing safety during reversing and turning maneuvers.

Another notable invention is the **PTO Transmission Structure**. This design includes a PTO driving shaft connected to a power source and a PTO driven shaft, with an innovative clutch unit that selectively manages power transmission. The transmission case ingeniously supports both shafts while accommodating the clutch unit, showcasing Kawada's engineering prowess in optimizing efficiency and functionality.

Career Highlights

Hirohiko Kawada has made significant strides in his career, working with reputable companies such as Kanzaki Kokyukoki Manufacturing Co., Ltd. His expertise and dedication have propelled advancements in the field, making him a respected figure in the industry.

Collaborations

Kawada's journey has been complemented by meaningful collaborations with talented individuals like Norihiro Ishii and Koji Irikura. These partnerships have undoubtedly contributed to the success and innovation of the projects they undertook together.

Conclusion

Hirohiko Kawada's legacy is marked by his 22 patents and innovative designs that continue to influence vehicle technology. His work exemplifies the spirit of innovation, pushing the boundaries of mechanical engineering to create safer and more efficient riding experiences.

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