Company Filing History:

14 out of 42,485

Hitachi, Ltd.

patents

3 out of 149

Hitachi Microcomputer Engineering, Ltd.

patents

where one patent can have more than one assignee

Years Active: 1979-1995

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14 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5440708 - Microprocessor and storage management system having said microprocessor (1995-08-08),

2. 5249276 - Address translation apparatus having a memory access privilege check (1993-09-28),

3. 5109491 - Memory management device (1992-04-28),

4. 4939636 - Memory management unit (1990-07-03),

5. 4930104 - Content-addressed memory (1990-05-29),

6. 4831586 - Content-addressed memory (1989-05-16),

7. 4819211 - Microcomputer system for high speed address translation (1989-04-04),

8. 4812969 - Address translation unit (1989-03-14),

9. 4653025 - Random access memory with high density and low power (1987-03-24),

10. 4577154 - Pulse width modulation circuit and integration circuit of analog product (1986-03-18),

11. 4562424 - Circuit for integrating analog signal and converting it into digital (1985-12-31),

12. 4388612 - Signal converter (1983-06-14),

13. 4319226 - Signal converter utilizing two clock signals (1982-03-09),

14. 4178585 - Analog-to-digital converter (1979-12-11),

Title: Katsuaki Takagi: Innovator in Microprocessor Technology

Introduction

Katsuaki Takagi is a prominent inventor based in Higashimurayama, Japan. He has made significant contributions to the field of microprocessor technology, holding a total of 14 patents. His work has been instrumental in advancing the capabilities of microprocessors and storage management systems.

Latest Patents

Among his latest patents is a microprocessor and storage management system that features a physical space management table. This table is designed to hold attribute data of various regions within a physical space, allowing for efficient management of these regions. The microprocessor is equipped with a physical space management unit that retrieves and manages this attribute data. Another notable patent is an address translation apparatus that includes a memory for storing multiple physical addresses. This apparatus enhances memory protection by checking access privileges and ensuring secure memory operations.

Career Highlights

Katsuaki Takagi has had a distinguished career, working with notable companies such as Hitachi, Ltd. and Hitachi Microcomputer Engineering, Ltd. His experience in these organizations has allowed him to develop innovative technologies that have had a lasting impact on the industry.

Collaborations

Throughout his career, Takagi has collaborated with esteemed colleagues, including Norio Nakagawa and Hirokazu Aoki. These partnerships have fostered a creative environment that has led to groundbreaking advancements in microprocessor technology.

Conclusion

Katsuaki Takagi's contributions to microprocessor technology and his impressive portfolio of patents highlight his role as a leading inventor in the field. His work continues to influence the development of advanced computing systems.

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