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For the Inventor, By the Inventor

Hyogo, Japan

Tsuyoshi Toyama

USPTO Granted Patents = 16

Average Co-Inventor Count = 3.7

ph-index = 11

Forward Citations = 641(Granted Patents)


Location History:

  • Itami, JP (1987)
  • Itama, JP (1989)
  • Hyogo, JP (1988 - 1993)

Company Filing History:

goldMedal16 out of 21,351 
 
Mitsubishi Denki Kabushiki Kaisha
 patents

Years Active: 1987-1993

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16 patents (USPTO):Explore Patents
1. 5262984 - Non-volatile memory device capable of storing multi-state data (1993-11-16),
2. 5262342 - Method of making a semiconductor memory device having error (1993-11-16),
3. 5195099 - Semiconductor memory device having improved error correcting circuit (1993-03-16),
4. 5182725 - Nonvolatile semiconductor memory device with reduced variation in source (1993-01-26),
5. 5172339 - Semiconductor memory device having error checking and correcting circuit (1992-12-15),
6. 5107313 - Floating gate type semiconductor memory device (1992-04-21),
7. 5105386 - Nonvolatile semiconductor memory device with reduced variation in source (1992-04-14),
8. 5097152 - Buffer circuit used in a semiconductor device operating by different (1992-03-17),
9. 5058071 - Semiconductor memory device having means for repairing the memory device (1991-10-15),
10. 5021999 - Non-volatile semiconductor memory device with facility of storing (1991-06-04),
11. 5003205 - Buffer circuit used in a semiconductor device operating by different (1991-03-26),
12. 4958352 - Semiconductor memory device with error check and correcting function (1990-09-18),
13. 4949305 - Erasable read-only semiconductor memory device (1990-08-14),
14. 4827452 - Semiconductor memory including a selectively disabled redunancy circuit (1989-05-02),
15. 4779272 - Testable variable-threshold non-volatile semiconductor memory (1988-10-18),

Title: Tsuyoshi Toyama: Innovator in Semiconductor Memory Technology

Introduction

Tsuyoshi Toyama is a prominent inventor based in Hyogo, Japan, recognized for his significant contributions to the field of semiconductor memory technology. With an impressive portfolio of 16 patents, Toyama has developed innovative solutions that enhance data storage and retrieval processes.

Latest Patents

Among his latest innovations is a non-volatile memory device capable of storing multi-state data. This invention revolutionizes data storage by converting input binary data into multi-state data, allowing for a more efficient write operation in memory transistors. By applying a voltage based on this multi-state data, Toyama's device ensures accurate threshold voltage settings in transistors, optimizing read operations through the detection of drain currents that correspond to these multi-state data.

Another notable patent details a method for creating a semiconductor memory device equipped with error-checking and correcting functions. This device features a circuit that generates error checking codes based on external information and links these codes to be transmitted to a memory cell array. A second circuit checks and corrects the read-out information, ensuring reliability by producing accurate output from the memory device.

Career Highlights

Tsuyoshi Toyama's career at Mitsubishi Electric Corporation has been marked by continuous innovation and excellence. His ongoing research and development efforts have solidified his reputation as a leading figure in semiconductor technology, with his patents demonstrating his commitment to overcoming challenges in data storage solutions.

Collaborations

Throughout his career, Toyama has worked alongside talented colleagues, including Kenji Kohda and Kenji Noguchi, fostering an environment of collaboration that promotes technological advancement. Their collective expertise has led to significant breakthroughs in the semiconductor industry, enhancing the performance and reliability of memory devices.

Conclusion

Tsuyoshi Toyama's noteworthy contributions to the field of semiconductor memory technology underscore the impact of his innovations on modern data storage solutions. His dedication to advancing memory technology through patents and collaboration reflects a vision that prioritizes efficiency and reliability, positioning him as a key figure in the ongoing evolution of this essential domain.

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