Company Filing History:

9 out of 42,488

Hitachi, Ltd.

patents

3 out of 3,781

Renesas Technology Corp.

patents

Years Active: 1998-2009

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12 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7557809 - Memory access methods in a unified memory system (2009-07-07),

2. 7333116 - Data processor having unified memory architecture using register to optimize memory access (2008-02-19),

3. 6954206 - Data processor having unified memory architecture using register to optimize memory access (2005-10-11),

4. 6839063 - Memory access methods in a unified memory system (2005-01-04),

5. 6745279 - Memory controller (2004-06-01),

6. 6717583 - Data processor having unified memory architecture providing priority memory access (2004-04-06),

7. 6600492 - Picture processing apparatus and picture processing method (2003-07-29),

8. 6385755 - Information processing system and logic LSI, detecting a fault in the system or the LSI, by using internal data processed in each of them (2002-05-07),

9. 6333745 - Data processor having unified memory architecture providing priority memory access (2001-12-25),

10. 6101627 - Information processing system and logic LSI, detecting a fault in the (2000-08-08),

11. 6101596 - Information processor for performing processing without register (2000-08-08),

12. 5848238 - Information processing system and logic LSI, detecting a fault in the (1998-12-08),

Title: Tetsuya Shimomura: Innovator in Memory Access Technologies

Introduction

Tetsuya Shimomura is a prominent inventor based in Hitachi, Japan. He has made significant contributions to the field of memory access technologies, holding a total of 12 patents. His work focuses on optimizing memory systems for enhanced performance in multimedia data processing.

Latest Patents

Among his latest patents, one notable invention is related to memory access methods in a unified memory system. This invention outlines a multimedia data-processing system that includes a CPU, an image display unit, a unified memory, a system bus, and various connected devices. The configuration allows the CPU to be formed on an LSI mounted on a single silicon wafer, which includes both an instruction processing unit and a display control unit. The unified memory serves as the main storage area, with a dedicated port for faster data processing compared to the system bus.

Another significant patent involves a data processor that utilizes a unified memory architecture to optimize memory access. This invention addresses the degradation of processing performance when part of the main memory is used as a display frame buffer. The memory controller holds access requests from the CPU and coordinates with the display controller to ensure efficient data transfer.

Career Highlights

Tetsuya Shimomura has worked with notable companies such as Hitachi, Ltd. and Renesas Technology Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas in memory technology.

Collaborations

Throughout his career, Tetsuya has collaborated with esteemed colleagues, including Yasuhiro Nakatsuka and Takashi Hotta. These collaborations have contributed to the advancement of technology in their respective fields.

Conclusion

Tetsuya Shimomura's contributions to memory access technologies have established him as a key figure in the industry. His innovative patents and collaborations reflect his commitment to enhancing data processing systems.

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