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For the Inventor, By the Inventor

Inazawa, Japan

Eiki Watanabe

USPTO Granted Patents = 34

Average Co-Inventor Count = 1.3

ph-index = 11

Forward Citations = 421(Granted Patents)


Location History:

  • Inazawa, JA (1977 - 1978)
  • Inazawa City, JP (1987)
  • Aichi, JP (1990)
  • Inazawa, JP (1979 - 1996)

Company Filing History:

goldMedal34 out of 21,351 
 
Mitsubishi Denki Kabushiki Kaisha
 patents

Years Active: 1977-1996

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34 patents (USPTO):Explore Patents
1. 5547059 - Linear motor elevator system (1996-08-20),
2. 5131507 - Hydraulic elevator control apparatus using VVVF to determine the (1992-07-21),
3. 5038894 - Drive control apparatus (1991-08-13),
4. 4979593 - Elevator controller (1990-12-25),
5. 4935684 - Control system for induction motor (1990-06-19),
6. 4789049 - Signal transmitting equipment for elevator (1988-12-06),
7. 4756398 - Passenger conveyor apparatus (1988-07-12),
8. 4748394 - Control apparatus for escalator (1988-05-31),
9. 4738346 - Driving unit for passenger conveyor system (1988-04-19),
10. 4711335 - Display device for an escalator (1987-12-08),
11. 4678063 - Apparatus for controlling an elevator (1987-07-07),
12. 4666020 - Control apparatus for elevator (1987-05-19),
13. 4642474 - Elevator rescue apparatus during stoppage of power supply (1987-02-10),
14. 4567419 - Control apparatus for elevator (1986-01-28),
15. 4520906 - Control apparatus for elevator (1985-06-04),

Eiki Watanabe: Innovator in Elevator Technology

Introduction

Eiki Watanabe is a notable inventor from Inazawa, Japan, recognized for his significant contributions to elevator technology. With a remarkable portfolio of 34 patents, Watanabe has shown a deep commitment to innovation in the field.

Latest Patents

Among his latest inventions are the "Linear Motor Elevator System" and the "Hydraulic Elevator Control Apparatus Using VVVF." The linear motor elevator system features a unique design that includes a sheave positioned in the upper part of the elevator hoistway, coupled with a primary winding and secondary conductor to create a linear motor. This innovative system also integrates a brake unit and a guide rail for enhanced safety and efficiency.

His hydraulic elevator control apparatus employs an induction motor to operate a hydraulic pump, with a sophisticated inverter circuit that manages the motor's rotation and speed. This system incorporates various components, including a current transformer, voltage detector, and frequency controller, to optimize the elevator's performance dynamically.

Career Highlights

Watanabe is an esteemed member of Mitsubishi Denki Kabushiki Kaisha, a renowned leader in the electrical and electronics industry. His role at the company allows him to push the boundaries of elevator technology further, contributing greatly to their reputation for innovation and reliability.

Collaborations

In his career, Eiki Watanabe has collaborated with notable colleagues such as Toshiaki Ishii and Nobuo Anzai, working collectively to advance the technologies that define modern elevators. Their teamwork has been pivotal in developing systems that enhance functional efficiency and safety in vertical transportation.

Conclusion

Eiki Watanabe's dedication to innovation and excellence continues to shape the future of elevator technology. With his extensive patent portfolio, he significantly enhances the transportation experience in buildings worldwide, making him a key figure in the realm of inventions and technological advancements.

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