Company Filing History:

8 out of 1,343

Kabushiki Kaisha Toyoda Jidoshokki Seisakusho

patents

2 out of 1,139

Kabushiki Kaisha Toyota Chuo Kenkyusho

patents

2 out of 832,812

Other

patents

where one patent can have more than one assignee

Years Active: 1991-2003

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10 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6611746 - Industrial vehicle with a device for measuring load weight moment and a method therefor (2003-08-26),

2. 6549873 - Position detecting device for hydraulic cylinder, and detecting method thereof (2003-04-15),

3. 6490227 - Device and method for detecting position of movable body by using ultrasonic waves (2002-12-03),

4. 6463009 - Position detecting device and industrial vehicle having the position detecting device (2002-10-08),

5. 6435031 - Position detecting device for hydraulic cylinder, and industrial vehicle equipped with the position detecting device (2002-08-20),

6. 6296081 - Lift cylinder and mast assembly of forklift (2001-10-02),

7. 6267042 - Position detector for fluid cylinder (2001-07-31),

8. 5146746 - Loading/unloading control apparatus for industrial vehicles (1992-09-15),

9. 5066201 - Driving load controller for variable displacement type hydraulic pump (1991-11-19),

10. 5050379 - Displacement of a variable displacemet hydraulic pump and speed of an (1991-09-24),

Title: Innovations of Katsumi Nagai

Introduction

Katsumi Nagai is a prominent inventor based in Aichi-ken, Japan. He has made significant contributions to the field of industrial vehicles, holding a total of 10 patents. His work focuses on enhancing the functionality and safety of industrial machinery.

Latest Patents

One of his latest patents is for an industrial vehicle equipped with a device for measuring load weight moment. This invention features a loading attachment, a mast, a tilt cylinder, first and second pressure sensors, and a controller. The mast supports the attachment and guides it, while the tilt cylinder operates using hydraulic fluid. The controller calculates the axial force applied to the tilt cylinder and determines the load weight moment based on this force, ensuring the vehicle operates within safe limits.

Another notable patent involves a position detecting device for hydraulic cylinders. This invention utilizes a pressure sensor and a temperature sensor to provide accurate measurements. The detection signals are processed to correct the sonic speed of ultrasonic waves, allowing for precise calculations of the distance from the ultrasonic wave sensor to the piston bottom surface.

Career Highlights

Katsumi Nagai has worked with notable companies such as Kabushiki Kaisha Toyoda Jidoshokki Seisakusho and Kabushiki Kaisha Toyota Chuo Kenkyusho. His experience in these organizations has contributed to his expertise in the field of industrial vehicle technology.

Collaborations

He has collaborated with talented individuals, including Teruyuki Nishimyou and Masataka Osawa, further enhancing the innovative projects he has undertaken.

Conclusion

Katsumi Nagai's contributions to industrial vehicle technology through his patents demonstrate his commitment to innovation and safety in the industry. His work continues to influence the development of advanced machinery.

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