Company Filing History:

8 out of 583

Omron Tateisi Electronics Co.

Makita Electric Works, Ltd.

patents

where one patent can have more than one assignee

Years Active: 1980-1992

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12 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5084598 - Electric switch for a power tool (1992-01-28),

2. 5077824 - Direct-current motor control (1991-12-31),

3. 5051547 - Switch mechanism for an electric power tool (1991-09-24),

4. 4977358 - Switching circuit for varying rotational speed of motor (1990-12-11),

5. 4903318 - Electric switch system for a power tool (1990-02-20),

6. 4847451 - Electric tool power switch assembly providing convenient reversing (1989-07-11),

7. 4795863 - Electrical switch (1989-01-03),

8. 4719395 - Variable speed control switch for an electric tool including a DC motor (1988-01-12),

9. 4681994 - High precision and compact contact switch (1987-07-21),

10. 4564730 - Electrical switch (1986-01-14),

11. D260004 - Temperature controller (1981-07-28),

12. 4216675 - Temperature detecting device (1980-08-12),

Title: Kunio Nagata: Innovator in Electric Power Tools

Introduction

Kunio Nagata is a prominent inventor based in Otokuni, Japan, known for his significant contributions to the field of electric power tools. With a total of 12 patents to his name, Nagata has developed innovative solutions that enhance the functionality and efficiency of power tools.

Latest Patents

One of Nagata's latest inventions is an electric switch for a power tool. This switch features a slider that is slidably received in a switch casing along a longitudinal direction. It includes a handle for manual actuation, a plurality of fixed contact pieces, and moveable contact pieces that achieve various conductive states. This design allows for a compact switch casing and improves the efficiency of the assembling process without compromising reliability. Another notable patent is a direct-current motor control circuit designed for electric power tools. This circuit controls the supply of electric power to the motor and eliminates the need for a complex speed control system by increasing the duty ratio of the control input signal in response to the detected electric current.

Career Highlights

Throughout his career, Kunio Nagata has worked with reputable companies such as Omron Tateisi Electronics Co. and Omron Corporation. His experience in these organizations has contributed to his expertise in developing innovative technologies for electric power tools.

Collaborations

Nagata has collaborated with notable coworkers, including Motoyuki Tomizu and Tatsuo Aoi, who have contributed to his projects and innovations.

Conclusion

Kunio Nagata's work in the field of electric power tools showcases his innovative spirit and dedication to improving technology. His patents reflect a commitment to enhancing efficiency and reliability in power tool design.

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