Company Filing History:

12 out of 13,395

Nissan Motor Company Limited

where one patent can have more than one assignee

Years Active: 1976-1990

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12 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4958610 - Fuel injection system (1990-09-25),

2. 4751907 - Air/fuel ratio detecting apparatus for internal combustion engines (1988-06-21),

3. 4699110 - Fuel supply system (1987-10-13),

4. 4579097 - Fuel supply apparatus and method for internal combustion engines (1986-04-01),

5. 4501709 - Variable venturi carburetor (1985-02-26),

6. 4485791 - Method of operating a single spot fuel injected internal combustion (1984-12-04),

7. 4388907 - Single point fuel injected internal combustion engine and method of (1983-06-21),

8. 4375204 - Intake device for internal combustion engine (1983-03-01),

9. 4369650 - Adjustable air flow sensor arrangement (1983-01-25),

10. 4285318 - Exhaust gas recirculation system having flow control valve combined with (1981-08-25),

11. 4027636 - Flow rate control apparatus in exhaust gas recirculation system (1977-06-07),

12. 3938330 - Exhaust manifold with sluice valve (1976-02-17),

Title: The Innovative Contributions of Tadahiro Yamamoto

Introduction

Tadahiro Yamamoto is a notable inventor based in Yokosuka, Japan. He has made significant contributions to the field of engineering, particularly in fuel injection systems and air/fuel ratio detection for internal combustion engines. With a total of 12 patents to his name, his work has had a considerable impact on automotive technology.

Latest Patents

One of his latest patents is a fuel injection system that features a plunger within a cylinder, an actuator in the form of a piezoelectric element for the plunger's reciprocation, and a fuel supply passage for admitting fuel. This system also includes multiple pressurized fuel delivery passages for distributing fuel among various injection valves, solenoid valves for controlling these passages, and a control circuit for managing the actuator and solenoid valves. Another significant patent is an air/fuel ratio detecting apparatus for internal combustion engines. This invention includes a detector for measuring the concentration of residual oxygen in exhaust gas, which helps determine the air/fuel ratio. It also features an additional air introducing device that enhances the accuracy of the A/F ratio detection by compensating for the effects of aged deterioration in the oxygen concentration.

Career Highlights

Yamamoto has worked with prominent companies such as Nissan Motor Company Limited and Hitachi, Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in automotive technology.

Collaborations

Throughout his career, Yamamoto has collaborated with talented individuals, including Tadaki Oota and Kenji Yoneda. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Tadahiro Yamamoto's contributions to the field of engineering, particularly in fuel injection systems and air/fuel ratio detection, showcase his innovative spirit and dedication to advancing automotive technology. His work continues to influence the industry and inspire future inventors.

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