IDiyas

For the Inventor, By the Inventor

Ibaraki, Japan

Ken Ichiryu

USPTO Granted Patents = 24

Average Co-Inventor Count = 3.7

ph-index = 12

Forward Citations = 441(Granted Patents)


Location History:

  • Mito, JA (1976 - 1977)
  • Mito, JP (1979 - 1984)
  • Shimoinayoshi, JP (1989)
  • Ibaragi, JP (1990)
  • Ibaraki, JP (1985 - 1994)
  • Ibaraki-Ken, JP (1999)
  • Chiyoda-machi, JP (2000)

Company Filing History:

goldMedal18 out of 42,485 
 
Hitachi, Ltd.
 patents
silverMedal7 out of 1,498 
 
Hitachi Construction Machinery Co., Ltd.
 patents
bronzeMedal1 out of 4 
 
Hitachi Construction Machinery
 patents
where one patent can have more than one assignee

Years Active: 1976-2000

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24 patents (USPTO):Explore Patents
1. 6074023 - Guide roller assembly for crawler type vehicles and method for forming (2000-06-13),
2. 5861577 - Seal structure for member-passing-through hole bored in metal partition (1999-01-19),
3. 5290369 - Method of gas sulphonitriding (1994-03-01),
4. 5187017 - Sliding member, and method and apparatus for producing the same by gas (1993-02-16),
5. 5144843 - Pressure sensor (1992-09-08),
6. 4919390 - Solenoid operated valve apparatus (1990-04-24),
7. 4813447 - Flow control valve apparatus (1989-03-21),
8. 4788902 - Thrust hydrostatic bearing device for use in axial piston machine (1988-12-06),
9. 4735233 - Rotary valve (1988-04-05),
10. 4544129 - Direct-acting servo valve (1985-10-01),
11. 4534452 - Hydraulic elevator (1985-08-13),
12. 4529974 - Fluid leakage detecting apparatus (1985-07-16),
13. 4529362 - Servo pump for hydraulic systems (1985-07-16),
14. 4500865 - Fluid leakage detecting element (1985-02-19),
15. 4464978 - Servovalve apparatus (1984-08-14),

Title: Ken Ichiryu: Innovator in Mechanical Engineering

Introduction: Ken Ichiryu, based in Ibaraki, Japan, is a distinguished inventor with a remarkable portfolio of 24 patents. His contributions to mechanical engineering, particularly in the area of crawler type vehicles and innovative sealing structures, highlight his expertise and commitment to advancing technology.

Latest Patents: Among his latest patents, two stand out for their innovative designs:

1. **Guide Roller Assembly for Crawler Type Vehicles** - This invention involves a guide roller assembly, including a support shaft fixedly secured on a truck frame, with the guide roller rotatably mounted on the support shaft. The design features a stepped cylindrical shape, characterized by a radially bulged portion formed through plastic deformation, which significantly enhances strength while reducing production costs.

2. **Seal Structure for Member-Passing-Through Hole Bored in Metal Partition** - This patent outlines a seal structure addressing the challenges posed by member-passing holes in metal partitions. The structure effectively seals the hole by utilizing a synthetic resin seal member that relies on both the confinement effects of the metal base member and the elastic plasticity of the seal member, ensuring excellent pressure-resistive performance.

Career Highlights: Ken Ichiryu has contributed his expertise to notable companies including Hitachi, Ltd. and Hitachi Construction Machinery Co., Ltd. His work at these organizations has fostered advancements in mechanical engineering and has significantly influenced the design and operation of construction machinery.

Collaborations: Throughout his career, Ichiryu has collaborated with other skilled professionals, including Ichiro Nakamura and Haruo Watanabe. These collaborations have enriched his innovative projects and helped drive forward pioneering work in his field.

Conclusion: Ken Ichiryu's ongoing contributions to mechanical engineering through his patents reflect his dedication to innovation. His accomplishments and collaborations have positioned him as a notable figure in the industry, inspiring future developments in technology.

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