Company Filing History:

8 out of 52,789

Kabushiki Kaisha Toshiba

patents

7 out of 2,916

Tokyo Shibaura Denki Kabushiki Kaisha

patents

Years Active: 1982-1998

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15 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5708356 - Apparatus for supplying stabilized power to a load having (1998-01-13),

2. 4725938 - High voltage resonant DC/DC converter (1988-02-16),

3. 4706268 - Digital radiography apparatus (1987-11-10),

4. 4698743 - Resonance inverter with control means for detecting peak voltage and (1987-10-06),

5. 4680534 - Drive method for switching power converter and apparatus using this (1987-07-14),

6. 4614999 - High voltage pulsed power supply with time limiting nonlinear feedback (1986-09-30),

7. 4595973 - Switching power supply (1986-06-17),

8. 4573184 - Heating circuit for a filament of an X-ray tube (1986-02-25),

9. 4443839 - Single ended, separately driven, resonant DC-DC converter (1984-04-17),

10. 4424459 - High frequency switching circuit (1984-01-03),

11. 4417153 - High frequency switching circuit (1983-11-22),

12. 4401902 - High frequency switching circuit (1983-08-30),

13. 4399376 - High frequency switching circuit (1983-08-16),

14. 4383292 - Single-ended switching converter (1983-05-10),

15. 4318164 - High frequency switching circuit having preselected parameters to reduce (1982-03-02),

Title: The Innovations of Toshihiro Onodera

Introduction

Toshihiro Onodera is a notable inventor based in Kunitachi, Japan. He has made significant contributions to the field of electrical engineering, holding a total of 15 patents. His work primarily focuses on power supply apparatuses and high voltage DC/DC converters.

Latest Patents

One of his latest patents is an apparatus for supplying stabilized power to a load. This innovative electric power supply apparatus includes a traveling-wave tube that exhibits partial negative-resistance characteristics. It features a voltage stabilizing circuit that controls a voltage control element using an error amplifier and a switch, ensuring stable power supply to the traveling-wave tube. The apparatus is capable of detecting whether the traveling-wave tube is in positive-resistance or negative-resistance operation, allowing for effective control during these operations.

Another significant patent is for a high voltage resonant DC/DC converter. This converter includes a voltage resonance switching circuit formed by a coreless transformer and a GTO thyristor switching element. The design incorporates a voltage resonance capacitor connected in parallel to the switching element, with a rectifier circuit linked to the secondary winding of the transformer. The resonance frequency of the parallel resonance circuit is specifically selected to enhance the efficiency of the current supplied to the circuit.

Career Highlights

Throughout his career, Toshihiro Onodera has worked with prominent companies such as Toshiba Corporation and Tokyo Shibaura Electric Corporation. His experience in these organizations has contributed to his expertise in electrical engineering and innovation.

Collaborations

He has collaborated with notable coworkers, including Youichi Masuda and Akira Nakajima, who have also made significant contributions to the field.

Conclusion

Toshihiro Onodera's innovative work in electrical engineering has led to the development of important technologies that enhance power supply systems. His contributions continue to influence the industry and inspire future innovations.

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