Company Filing History:

9 out of 19,697

Denso Corporation

patents

4 out of 36,499

Toyota Jidosha Kabushiki Kaisha

patents

2 out of 3,252

Nippondenso Co., Ltd.

patents

where one patent can have more than one assignee

Years Active: 1997-2008

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12 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7451036 - Control apparatus and control method for internal combustion engine (2008-11-11),

2. 7162356 - Control apparatus and control method for internal combustion engine (2007-01-09),

3. 6997161 - Control apparatus and control method for internal combustion engine (2006-02-14),

4. 6901920 - Engine control apparatus having cylinder-by-cylinder feedback control (2005-06-07),

5. 6748314 - Fuel injection amount control system for internal combustion engine (2004-06-08),

6. 6591822 - Air-fuel ratio controller of internal combustion engines (2003-07-15),

7. 6571767 - Flow amount calculation controller and flow amount calculation control method (2003-06-03),

8. 6397830 - Air-fuel ratio control system and method using control model of engine (2002-06-04),

9. 6082337 - Abnormality detection apparatus for preventing fuel gas emission (2000-07-04),

10. 5845489 - Abnormality detector for air-fuel ratio control system (1998-12-08),

11. 5784879 - Air-fuel ratio control system for internal combustion engine (1998-07-28),

12. 5611315 - Fuel supply amount control apparatus for internal combustion engine (1997-03-18),

Title: Hisayo Dohta: Innovator in Internal Combustion Engine Technology

Introduction

Hisayo Dohta is a prominent inventor based in Chiryu, Japan, known for her significant contributions to the field of internal combustion engine technology. With a total of 12 patents to her name, she has made remarkable advancements that enhance engine performance and efficiency.

Latest Patents

One of her latest patents is a control apparatus and control method for an internal combustion engine. This innovative control apparatus is equipped with a fuel supply mechanism that can adjust the fuel supply amount. It includes a flow rate sensor that detects the intake air flow rate, a pressure sensor that measures the pressure of the air entering the combustion chamber, and a characteristic change estimation unit. This unit estimates changes in the engine's characteristics based on the detected intake air flow rate and pressure. The fuel supply mechanism control unit then adjusts the fuel supply to compensate for these changes, ensuring optimal engine performance.

Career Highlights

Throughout her career, Hisayo Dohta has worked with notable companies such as Denso Corporation and Toyota Jidosha Kabushiki Kaisha. Her experience in these leading automotive companies has allowed her to develop and refine her innovative ideas in engine technology.

Collaborations

Some of her notable coworkers include Katsuhiko Kawai and Naohide Fuwa, who have collaborated with her on various projects, contributing to the advancement of automotive technology.

Conclusion

Hisayo Dohta's work in the field of internal combustion engines showcases her innovative spirit and dedication to improving engine efficiency. Her patents reflect her expertise and commitment to advancing automotive technology.

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1 patent (EPO):

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