Company Filing History:

19 out of 21,351

Mitsubishi Denki Kabushiki Kaisha

patents

14 out of 128

Suzuki Jidosha Kogyo Kabushiki Kaisha

patents

1 out of 488

Mitsubishi Denki K.k.

patents

4. 1 out of 1

Suzuki Jidosha Kogyo Kabushiki

patent

where one patent can have more than one assignee

Years Active: 1985-1999

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21 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5999870 - Motor-driven power steering system for a vehicle and a method for (1999-12-07),

2. 5114383 - Apparatus for controlling continuous variable transmission (1992-05-19),

3. 5074166 - Continuous speed variable transmission control method (1991-12-24),

4. 5069086 - Belt ratio controller for a continuously vaiable transmission (1991-12-03),

5. 5069083 - Continuous speed variable transmission control apparatus (1991-12-03),

6. 5060770 - Method of controlling rotational speed of continuous variable (1991-10-29),

7. 5060768 - Creep control for a continuously variable transmission (1991-10-29),

8. 5050455 - Method of controlling continuous variable transmission (1991-09-24),

9. 5042323 - Hydraulic control method for continuously variable speed change gear (1991-08-27),

10. 5024310 - Clutch pressure control device for continuously variable transmission (1991-06-18),

11. 5022287 - Method of controlling clutch of continuously variable transmission system (1991-06-11),

12. 4989149 - Constant-speed running apparatus for vehicle (1991-01-29),

13. 4964317 - Hydraulic control method for continuously variable speed change gear (1990-10-23),

14. 4962678 - Hydraulic control method for continuously variable speed change gear (1990-10-16),

15. 4958538 - Method and apparatus for controlling line pressure of continuously (1990-09-25),

Title: The Innovative Journey of Takumi Tatsumi

Introduction

Takumi Tatsumi, a prolific inventor based in Hyogo, Japan, has made significant contributions to the automotive industry with a remarkable portfolio of 21 patents. His inventions are focused on enhancing vehicle performance and control, demonstrating a blend of creativity and engineering expertise.

Latest Patents

Among his latest innovations is a motor-driven power steering system for vehicles, which revolutionizes steering responsiveness and driver control. Another noteworthy patent is an apparatus for controlling continuously variable transmission. This invention features a fixed pulley member and a movable pulley member, designed to adjust the width of the groove between them. By varying the groove's width, the rotational radius of a belt is increased or decreased, allowing for effective speed change control that optimizes engine performance based on throttle input and vehicle velocity. The control unit of this system determines target engine rotational speeds, setting the parameters for efficient vehicle operation.

Career Highlights

Takumi Tatsumi has garnered experience working for prominent companies in the automotive sector. He has held positions at Mitsubishi Electric Corporation and Suzuki Motor Corporation, where he has applied his innovative thinking to develop groundbreaking technologies that improve vehicle dynamics and user experience.

Collaborations

Throughout his career, Tatsumi has collaborated with notable peers, including Sadayuki Hirano and Yoshinori Yamashita. These partnerships have fostered a productive environment for innovation, enabling the development of advanced automotive technologies.

Conclusion

Takumi Tatsumi's contributions to automotive innovation are truly commendable. With a solid foundation of patents and collaborative efforts with industry professionals, his work continues to influence the future of vehicle technology. His inventive spirit and technical prowess ensure that he remains a key figure in advancing automotive performance and safety.

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