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For the Inventor, By the Inventor

Kariya, Japan

Koichiro Hirosawa

USPTO Granted Patents = 21

Average Co-Inventor Count = 2.8

ph-index = 13

Forward Citations = 369(Granted Patents)


Location History:

  • Kariya both of, JA (1977)
  • Kariya, JA (1976 - 1978)
  • Aichi, JP (1992)
  • Kariya, JP (1979 - 1993)

Company Filing History:

goldMedal21 out of 5,207 
 
Aisin Seiki Kabushiki Kaisha
 patents

Years Active: 1976-1993

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21 patents (USPTO):Explore Patents
1. 5251539 - Bellows pump (1993-10-12),
2. 5201643 - Compression machine (1993-04-13),
3. 5141409 - Compression machine (1992-08-25),
4. 5133327 - Air flow system having constant discharge volume (1992-07-28),
5. 5044907 - Rotor device having inner rotor and driven outer rotor (1991-09-03),
6. 4948352 - Rotor unit with peripheral projections and clearances for centrifugal (1990-08-14),
7. 4599916 - Continuously variable transmission including planetary gearing (1986-07-15),
8. 4143562 - Speed change gear (1979-03-13),
9. 4089239 - Speed change gear system (1978-05-16),
10. 4086994 - Fluid pressure modulating apparatus for a fluidically actuated (1978-05-02),
11. 4038888 - Speed change gear system (1977-08-02),
12. 4038887 - Speed change gear (1977-08-02),
13. 4033203 - Hydraulic control system for vehicle transmission means (1977-07-05),
14. 4027552 - Speed change gear system (1977-06-07),
15. 4027551 - Speed change gear system (1977-06-07),

Title: Koichiro Hirosawa: Innovator in Pump and Compression Technologies

Introduction

Koichiro Hirosawa, a prolific inventor based in Kariya, Japan, has made significant contributions to the field of engineering with a total of 21 patents to his name. His innovative solutions focus primarily on advanced pumping and compression technologies, showcasing his commitment to enhancing efficiency in industrial applications.

Latest Patents

Among his latest inventions, Hirosawa has developed a novel bellows pump. This pump comprises a body and a movable supporting member, which allows for effective movement. The design features a bellows fixed between the body and the supporting member, with peak portions of the bellows that have been innovatively designed with varying thicknesses. A notable aspect of this invention is the inverse proportion of the bellows’ pitches to their thickness, enhancing performance and efficiency.

Another significant invention is his high volumetric efficiency compression machine, which can function as a compressor, pump, or actuator. This machine features a compression chamber defined by a movable body and the inner wall of a casing. It includes a discharge valve and two symmetrically arranged intake valves, promoting optimal fluid dynamics. The design also employs a rod for transmitting reciprocation to the movable body, further enhancing the machine's functionality.

Career Highlights

Hirosawa is currently associated with Aisin Seiki Kabushiki Kaisha, a company known for its dedication to automotive and industrial systems. His work at Aisin Seiki has enabled him to push the boundaries of technology in pumping and compression, earning a reputation for innovation and excellence in engineering.

Collaborations

Throughout his career, Hirosawa has collaborated with esteemed colleagues such as Noboru Murakami and Koichi Matsuo. Working alongside these talented individuals has fostered an environment of creativity and innovation, resulting in a series of patents that contribute to advancements in their respective fields.

Conclusion

Koichiro Hirosawa exemplifies the spirit of innovation and dedication to improving industrial technologies. With his impressive portfolio of patents, he continues to inspire future generations of engineers and inventors. His contributions not only enhance efficiency in various applications but also pave the way for further advancements in pumping and compression technologies.

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