Company Filing History:

10 out of 42,485

Hitachi, Ltd.

patents

1 out of 2

Microcomputer Engineering Ltd.

patents

1 out of 56

Hitachi Computer Engineering Co., Ltd.

patents

where one patent can have more than one assignee

Years Active: 1987-1997

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10 patents (USPTO):Sort by Forward Citations

Abstract keywords

1. 5689728 - Controller of paths for data transfer in system having external memory (1997-11-18),

2. 5561825 - Storage system and method of remotely controlling the same (1996-10-01),

3. 5253351 - Memory controller with a cache memory and control method of cache memory (1993-10-12),

4. 5091909 - Method for writing/reading of data in magnetic disk subsystem (1992-02-25),

5. 4819203 - Control system for interruption long data transfers between a disk unit (1989-04-04),

6. 4807180 - Multiple control system for disk storage and method for realizing same (1989-02-21),

7. 4805048 - Method for controlling to keep off defects on magnetic disks (1989-02-14),

8. 4800483 - Method and system for concurrent data transfer disk cache system (1989-01-24),

9. 4792917 - Control apparatus for simultaneous data transfer (1988-12-20),

10. 4688221 - Error recovery method and apparatus (1987-08-18),

Title: Yoshiro Shiroyanagi: Innovator in Data Transfer Systems

Introduction

Yoshiro Shiroyanagi is a prominent inventor based in Odawara, Japan. He has made significant contributions to the field of data transfer systems, holding a total of 10 patents. His innovative work has greatly influenced the efficiency of data management and storage technologies.

Latest Patents

One of Shiroyanagi's latest patents is titled "Controller of paths for data transfer in system having external memory." This invention involves a magnetic disk controller equipped with a cache memory for disks. The controller includes high order paths for data transfer between a high order channel apparatus and the cache memory, as well as low order paths for data transfer between a low order device, such as a magnetic disk device, and the cache memory. This design allows for improved path utilization efficiency, even when the high order and low order paths are busy.

Another notable patent is "Storage system and method of remotely controlling the same." This storage system connects to host processors through data transfer paths and includes a storage unit that moves a head for reading and writing data. The controller in this system measures delay times in data transfer paths and optimizes the positioning of the head to enhance data access efficiency.

Career Highlights

Throughout his career, Yoshiro Shiroyanagi has worked with esteemed companies such as Hitachi, Ltd. and Microcomputer Engineering Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas in data transfer technologies.

Collaborations

Shiroyanagi has collaborated with notable coworkers, including Akira Kurano and Katsunori Nakamura. Their combined expertise has contributed to the advancement of various projects in the field of data management.

Conclusion

Yoshiro Shiroyanagi's contributions to data transfer systems have established him as a key figure in the field of technology. His innovative patents continue to influence the efficiency of data management and storage solutions.

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