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For the Inventor, By the Inventor

Konan, Japan

Shigeru Okada

This inventor holds 12 USPTO granted patents. Top assignee: Diesel Kiki Co., Ltd.. Active years: 1987-1990.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigeru Okada. Retrieved from https://idiyas.com/inventor/shigeru-okada-tsqugo7y

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

Calculating rank
USPTO Granted Patents = 12

% Patents Active = 100.0

Average Co-Inventor Count = 2.8

ph-index = 6

Forward Citations = 87(Granted Patents)


Location History:

  • Higashimatsuyama, JP (1987)
  • Saitama, JP (1989)
  • Konan, JP (1988 - 1990)

Company Filing History:

goldMedal12 out of 596 
 
Diesel Kiki Co., Ltd.
 patents

Years Active: 1987-1990

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12 patents (USPTO):Explore Patents
1. 4976592 - Variable capacity vane compressor (1990-12-11),
2. 4867651 - Variable capacity vane compressor (1989-09-19),
3. 4850815 - Variable capacity vane compressor (1989-07-25),
4. 4822263 - Sliding-vane rotary compressor (1989-04-18),
5. 4819440 - Sliding-vane rotary compressor with displacememt-adjusting mechanism, (1989-04-11),
6. 4801251 - Sliding-vane rotary compressor (1989-01-31),
7. 4776770 - Variable capacity vane compressor (1988-10-11),
8. 4764099 - Compressor having discharge valve means adapted to enhance the (1988-08-16),
9. 4744732 - Variable capacity vane compressor (1988-05-17),
10. 4744731 - Variable capacity vane compressor (1988-05-17),
11. 4737081 - Variable capacity vane compressor (1988-04-12),
12. 4650052 - Circuit for driving solenoid clutch (1987-03-17),

Title: Shigeru Okada: Innovator in Variable Capacity Vane Compressors

Introduction

Shigeru Okada is a prominent inventor based in Konan, Japan. He has made significant contributions to the field of engineering, particularly in the development of variable capacity vane compressors. With a total of 12 patents to his name, Okada's work has had a substantial impact on the industry.

Latest Patents

One of Okada's latest patents involves a variable capacity vane compressor. This innovative compressor features an annular control element that is angularly displaceably received within an annular recess formed in one of the side blocks defining a cylinder. The control element is designed to be angularly displaced in response to pressure differences between two chambers, allowing for the adjustment of the compressor's capacity. Additionally, a positioning device is included to ensure the control element is radially positioned within the annular recess, which helps to reduce hysteresis during operation. The design also incorporates oil grooves to guide lubricating oil, further enhancing the efficiency of the compressor.

Career Highlights

Shigeru Okada has dedicated his career to advancing compressor technology. His work at Diesel Kiki Co., Ltd. has positioned him as a key figure in the development of innovative solutions for various applications. His expertise in engineering and design has led to numerous patents that reflect his commitment to improving mechanical systems.

Collaborations

Throughout his career, Okada has collaborated with notable colleagues, including Nobuyuki Nakajima and Kenichi Inomata. These partnerships have fostered a creative environment that has contributed to the success of their projects and innovations.

Conclusion

Shigeru Okada's contributions to the field of variable capacity vane compressors demonstrate his ingenuity and dedication to engineering. His patents and collaborative efforts continue to influence the industry, showcasing the importance of innovation in mechanical design.

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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