Company Filing History:

19 out of 42,508

Hitachi, Ltd.

patents

2 out of 228

Hitachi Software Engineering Company, Ltd.

patents

where one patent can have more than one assignee

Years Active: 1982-2012

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19 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 8213146 - Semiconductor power conversion apparatus (2012-07-03),

2. 5978851 - Distributed control system and method of configuring the system (1999-11-02),

3. 5857034 - System for inputting character data (1999-01-05),

4. 5592565 - Hand-written character recognition apparatus with a personal dictionary (1997-01-07),

5. 5504930 - Programmable controller and sequence control method (1996-04-02),

6. 5446377 - Magnetic detector using Matteucci effect (1995-08-29),

7. 5298689 - Coordinate input device using Matteucci effect (1994-03-29),

8. 5228100 - Method and system for producing from document image a form display with (1993-07-13),

9. 5191622 - Hand-written character recognition apparatus with a personal dictionary (1993-03-02),

10. 4983875 - Actuator (1991-01-08),

11. 4965504 - Control apparatus for inverter for driving AC motor (1990-10-23),

12. 4872000 - Coordinate input apparatus (1989-10-03),

13. 4839834 - Speed detecting apparatus (1989-06-13),

14. 4814678 - Speed control apparatus for motor (1989-03-21),

15. 4772996 - Load current detecting device for pulse width modulation inverter (1988-09-20),

Title: Innovations by Toshihiko Matsuda: Pioneering Semiconductor Technologies

Introduction: Toshihiko Matsuda, based in Owariasahi, Japan, is a prolific inventor with a remarkable portfolio of 19 patents. His contributions to the semiconductor industry have been significant, addressing key challenges in power conversion and control systems.

Latest Patents: Among his latest innovations is the "Semiconductor Power Conversion Apparatus," which is designed to protect insulated gate bipolar transistors (IGBTs) from overvoltage conditions. This apparatus ensures that a sufficient gate current is supplied to the gate of the IGBT, enhancing its resilience against potential damage. Matsuda's inventive approach includes connecting clamping elements in series between the collector and gate of the IGBT, along with strategically placed resistors at different junction points to optimize performance. Another notable patent is the "Distributed Control System and Method of Configuring the System," showcasing his expertise in intelligent system configurations.

Career Highlights: Matsuda's career includes significant tenures at renowned companies such as Hitachi, Ltd. and Hitachi Software Engineering Company, Ltd. His work in these institutions not only underscores his technical prowess but also his ability to collaborate with leading innovators in the field.

Collaborations: Throughout his career, Matsuda has worked alongside esteemed colleagues, including Tsutomu Omae and Morihiko Takashi. Their collective efforts have driven forward innovative projects, resulting in advancements that have benefited the broader industry.

Conclusion: Toshihiko Matsuda's contributions to semiconductor technology are marked by his inventive spirit and commitment to overcoming technical challenges. With a track record of impactful patents and collaborative endeavors, he continues to influence the future of power conversion and control systems. His work serves as an inspiration for current and future inventors in the field.

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