Company Filing History:

14 out of 36,499

Toyota Jidosha Kabushiki Kaisha

where one patent can have more than one assignee

Years Active: 2012-2023

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15 patents (USPTO):Sort by Forward Citations

Abstract keywords

1. 11698018 - Control device and control method for internal combustion engine (2023-07-11),

2. 10677180 - Controller and control method for internal combustion engine (2020-06-09),

3. 10563602 - Controller and control method for internal combustion engine (2020-02-18),

4. 10280967 - Fixing structure and electrical connection box (2019-05-07),

5. 10199813 - Fixing structure and electrical connection box (2019-02-05),

6. 10072593 - Control device of internal combustion engine (2018-09-11),

7. 9752523 - Air-fuel ratio control apparatus for internal combustion engine (2017-09-05),

8. 9341544 - Abnormality detecting device of internal combustion engine (2016-05-17),

9. 9206754 - Control device of internal combustion engine (2015-12-08),

10. 8695568 - Inter-cylinder air-fuel ratio imbalance abnormality determination device (2014-04-15),

11. 8640532 - Apparatus and method for detecting abnormal air-fuel ratio variation between cylinders (2014-02-04),

12. 8485167 - Abnormality detection apparatus and abnormality detection method for air/fuel ratio sensor (2013-07-16),

13. 8245569 - Abnormality detection apparatus and abnormality detection method for air/fuel ratio sensor (2012-08-21),

14. 8245568 - Abnormality detection apparatus and abnormality detection method for air/fuel ratio sensor (2012-08-21),

15. 8240195 - Abnormality detection apparatus and abnormality detection method for air/fuel ratio sensor (2012-08-14),

Title: Yuya Yoshikawa: Innovator in Internal Combustion Engine Technology

Introduction

Yuya Yoshikawa is a prominent inventor based in Chiryu, Japan, known for his significant contributions to the field of internal combustion engine technology. With a total of 15 patents to his name, Yoshikawa has developed innovative solutions that enhance engine performance and efficiency.

Latest Patents

One of his latest patents is a control device and control method for internal combustion engines. This invention includes an upstream cleaning device and a downstream cleaning device located in the exhaust gas passage. It also features a temperature sensor that detects the temperature of exhaust gas between the two cleaning devices. The control device is designed to estimate the temperature of the downstream cleaning device using two different methods. An abnormality determining process is initiated for the upstream cleaning device when the estimated temperature meets or exceeds a predetermined threshold value.

Another notable patent is a controller and control method for internal combustion engines. This invention involves a first limit requesting process that regulates the dither control process of fuel injection valves. The process ensures that the difference between the air-fuel ratios of the cylinders is minimized based on the degree of variation in fuel injection amounts. Additionally, a second limit requesting process further refines the dither control process by considering the torque fluctuation amount of the engine.

Career Highlights

Yoshikawa has worked with leading companies in the automotive industry, including Toyota Motor Corporation and Yazaki Corporation. His experience in these organizations has allowed him to apply his innovative ideas and contribute to advancements in engine technology.

Collaborations

Throughout his career, Yoshikawa has collaborated with notable colleagues such as Hiroaki Tsuji and Isao Nakajima. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Yuya Yoshikawa's work in internal combustion engine technology exemplifies the impact of innovation on the automotive industry. His patents reflect a commitment to improving engine performance and efficiency, making him a significant figure in the field.

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