Company Filing History:

11 out of 52,730

Kabushiki Kaisha Toshiba

Japan Com Company, Ltd.

patent

where one patent can have more than one assignee

Years Active: 1989-1998

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12 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5801986 - Semiconductor memory device having both redundancy and test capability (1998-09-01),

2. 5608241 - Semiconductor device having a memory cell portion and a logic portion (1997-03-04),

3. 5599356 - Process for producing an aqueous high concentration coal slurry (1997-02-04),

4. 5270978 - Nonvolatile memory circuit (1993-12-14),

5. 5219775 - Manufacturing method for a floating gate semiconductor memory device by (1993-06-15),

6. 5208488 - Potential detecting circuit (1993-05-04),

7. 5179537 - Semiconductor memory device having monitoring function (1993-01-12),

8. 5031149 - Non-volatile semiconductor memory device having, at the prestage of an (1991-07-09),

9. 5015890 - Sense amplifier having pull-up circuit controlled by feedback (1991-05-14),

10. 4958762 - Ultrasonic wire bonder (1990-09-25),

11. 4930105 - Nonvolatile semiconductor memory device with a double gate structure (1990-05-29),

12. 4859882 - Sense amplifier (1989-08-22),

Title: The Innovations of Osamu Matsumoto

Introduction

Osamu Matsumoto is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 12 patents. His work has been instrumental in advancing memory device capabilities and improving semiconductor design.

Latest Patents

Matsumoto's latest patents include a semiconductor memory device that features both redundancy and test capability. This innovative device incorporates a spare decoder with a first register, a second register, and a multiplexer. The first register stores data from a fuse element, allowing for the replacement of defective memory cells with spare cells based on the stored data. In test mode, the device can determine the functionality of spare cells, ensuring reliability in memory operations. Another notable patent is for a semiconductor device that combines a memory cell portion with a logic portion. This design utilizes second-layered aluminum wires formed over first-layered wires, enhancing the efficiency of mask data design and improving the coating ratio of resist to aluminum layers.

Career Highlights

Throughout his career, Osamu Matsumoto has worked with notable companies such as Toshiba Corporation and JGC Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas in semiconductor technology.

Collaborations

Matsumoto has collaborated with esteemed colleagues, including Isao Abe and Yukihiro Saeki. Their combined expertise has contributed to the successful development of advanced semiconductor technologies.

Conclusion

Osamu Matsumoto's contributions to semiconductor technology through his patents and collaborations have significantly impacted the industry. His innovative designs continue to influence the development of memory devices and semiconductor applications.

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