Company Filing History:

15 out of 21,351

Mitsubishi Denki Kabushiki Kaisha

patents

1 out of 3,781

Renesas Technology Corp.

patents

Years Active: 1988-2004

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16 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6818983 - Semiconductor memory chip and semiconductor memory device using the same (2004-11-16),

2. 6466506 - Semiconductor memory device capable of repairing small leak failure (2002-10-15),

3. 6385081 - Semiconductor integrated circuit (2002-05-07),

4. 6314037 - Semiconductor integrated circuit device using BiCMOS technology (2001-11-06),

5. 6272058 - Semiconductor memory device capable of performing data reading/writing in units of plurality of bits (2001-08-07),

6. 6141269 - Semiconductor integrated circuit device using BiCMOS technology (2000-10-31),

7. 5687111 - Static type semiconductor memory device capable of operating at a low (1997-11-11),

8. 5583460 - Output driver circuit for restraining generation of noise and (1996-12-10),

9. 5359553 - Low power ECL/MOS level converting circuit and memory device and method (1994-10-25),

10. 5274597 - Semiconductor memory device capable of driving divided word lines at (1993-12-28),

11. 5225717 - BiCMOS input buffer circuit operable at high speed under less power (1993-07-06),

12. 5124589 - Semiconductor integrated circuit capable of synchronous and asynchronous (1992-06-23),

13. 5095355 - Bipolar cross-coupled memory cells having improved immunity to soft (1992-03-10),

14. 5013936 - BiCMOS logic circuit using complementary bipolar transistors having (1991-05-07),

15. 4897820 - Bi-CMOS type of semiconductor memory device (1990-01-30),

Title: Toru Shiomi: Innovator in Semiconductor Technology

Introduction

Toru Shiomi is a prominent inventor based in Hyogo, Japan, known for his significant contributions to semiconductor technology. With a total of 16 patents to his name, he has made remarkable advancements in the field of memory devices.

Latest Patents

Among his latest innovations are two notable patents. The first is a semiconductor memory chip designed to be mounted on both sides of a circuit board. This invention features a relatively simple wiring pattern and is manufactured at a low cost. The semiconductor memory chip includes multiple memory cells and a control circuit formed on a semiconductor substrate. It also has a plurality of electrode pads for signal input and output, with selective connection electrode pads that can drive the control circuit by selecting and connecting either one. These pads are strategically placed on both sides of the chip's centerline.

The second patent focuses on a semiconductor memory device capable of repairing small leak failures. This device allows for independent control of the substrate potential of N-channel MOS transistors in an SRAM memory cell. In cases of standby current failure, the driving ability of the transistors can be weakened, enabling the identification of defective memory cells. This innovation improves yield by replacing faulty cells with redundant ones.

Career Highlights

Toru Shiomi has worked with notable companies in the semiconductor industry, including Mitsubishi Electric Corporation and Renesas Technology Corporation. His experience in these organizations has contributed to his expertise and the development of his patented technologies.

Collaborations

Throughout his career, Shiomi has collaborated with esteemed colleagues such as Shigeki Ohbayashi and Atsushi Ohba. Their joint efforts have further advanced the field of semiconductor technology.

Conclusion

Toru Shiomi's contributions to semiconductor technology through his innovative patents have significantly impacted the industry. His work continues to influence advancements in memory devices, showcasing his role as a leading inventor in this field.

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