Company Filing History:

14 out of 629

Toyoda Koki Kabushiki Kaisha

patents

4 out of 36,713

Toyota Jidosha Kabushiki Kaisha

where one patent can have more than one assignee

Years Active: 1985-2017

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19 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 9810327 - Pressure reducing valve (2017-11-07),

2. 9400506 - Pressure reducer (2016-07-26),

3. 8104508 - Valve device assembling structure, plug body, and manual valve (2012-01-31),

4. 8028716 - Pressure-reducing valve (2011-10-04),

5. 7819041 - Transmission ratio variable device and steering gear (2010-10-26),

6. 6912921 - Torque detecting device (2005-07-05),

7. 6877969 - Vane pump (2005-04-12),

8. 6877961 - Vane pump with a bypass valve and passage arrangement for equalizing excess fluid flow through dual suction passages (2005-04-12),

9. 6648620 - Rotary pump apparatus (2003-11-18),

10. 6299418 - Oil pump apparatus (2001-10-09),

11. 6203303 - Vane pump (2001-03-20),

12. 6068461 - Vane type rotary pump having a discharge port with a tapered bearded (2000-05-30),

13. 6041807 - Flow control device of power steering apparatus (2000-03-28),

14. 5213491 - Tandem pump having a different sized vane for each pump (1993-05-25),

15. 4971535 - Tandem rotary pump with pressure chamber between two intermediate side (1990-11-20),

Title: Hidetoshi Fujiwara: Innovator in Pressure Regulation Technologies

Introduction

Hidetoshi Fujiwara, based in Nukata-gun, Japan, is a prominent inventor recognized for his significant contributions to pressure regulation technologies. With a remarkable portfolio of 19 patents, he has made a notable impact in the engineering field, particularly with his inventions focusing on pressure reducers and valves.

Latest Patents

Among Fujiwara's latest patents is a sophisticated **Pressure Reducing Valve**. This valve element features a taper portion that is strategically seated on the inner periphery of a valve hole, designed to manage fluid flow efficiently. The valve has three distinct areas that optimize the pressure control process by ensuring gradual adjustments in passage height from upstream to downstream.

Another key invention is his **Pressure Reducer**, which incorporates a piston that slides within a cylinder. This setup creates both a decompression chamber and a pressure adjusting chamber. The innovative design includes a seal member with an elastic component that provides precise pressure adjustments, preventing excessive piston movement. The method enhances the accuracy of pressure control, making it invaluable for various industrial applications.

Career Highlights

Hidetoshi Fujiwara has had an impressive career, contributing to the automotive and engineering sectors through his work with well-known companies such as Toyoda Koki and Toyota Motor Corporation. His expertise in creating and refining pressure systems has been integral to advancements in these industries, showcasing his dedication to innovation and improvement.

Collaborations

Throughout his career, Fujiwara has collaborated with esteemed colleagues like Motoyasu Yamamori and Kentaro Yamauchi. These partnerships have fostered an environment of creativity and technical mastery, further propelling advancements in the technologies he specializes in.

Conclusion

Hidetoshi Fujiwara has firmly established himself as a leader in the field of pressure regulation technologies. His innovative patents and collaborative spirit have made a significant impact on the industry, ensuring that his contributions will be felt for years to come. With each patent, he continues to push the boundaries of invention, making a lasting difference in engineering and technology.

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