Ryotaro Sakurai

This inventor holds 16 USPTO granted patents and 2 EPO patents. Top assignees: Floadia Corporation, Renesas Technology Corp., Hitachi Ulsi Systems Co., Ltd.. Active years: 2005-2020.

USPTO Granted Patents = 16

% Patents Active = 93.8

EPO Patents = 2 (Patent Applications = 1)

Average Co-Inventor Count = 4.5

ph-index = 4

Forward Citations = 121(Granted Patents)

Location History:

Hachioji, JP (2005 - 2010)
Kanagawa, JP (2014)
Tokyo, JP (2018)
Kodaira, JP (2016 - 2020)

Company Filing History:

Renesas Technology Corp.

patents

2 out of 336

Hitachi Ulsi Systems Co., Ltd.

patents

4. 2 out of 7,649

Renesas Electronics Corporation

patents

where one patent can have more than one assignee

Years Active: 2005-2020

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16 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 10680001 - Non-volatile semiconductor memory device (2020-06-09),

2. 10263002 - Anti-fuse memory and semiconductor storage device (2019-04-16),

3. 10102911 - Non-volatile semiconductor storage device for reducing the number of memory cells arranged along a control to which a memory gate voltage is applied (2018-10-16),

4. 10074660 - Semiconductor memory device (2018-09-11),

5. 10074658 - Non-volatile SRAM memory cell and non-volatile semiconductor storage device (2018-09-11),

6. 10038101 - Memory cell and non-volatile semiconductor storage device (2018-07-31),

7. 9842650 - Non-volatile SRAM memory cell, and non-volatile semiconductor storage device (2017-12-12),

8. 9830989 - Non-volatile semiconductor storage device (2017-11-28),

9. 9318196 - Non-volatile semiconductor memory device (2016-04-19),

10. 8670280 - Charge pump circuit, nonvolatile memory, data processing apparatus, and microcomputer application system (2014-03-11),

11. 7808828 - Non volatile memory (2010-10-05),

12. 7558107 - Non volatile memory (2009-07-07),

13. 7457161 - Nonvolatile memory apparatus (2008-11-25),

14. 7426136 - Non volatile memory (2008-09-16),

15. 7170787 - Nonvolatile memory apparatus (2007-01-30),

Title: The Innovations of Ryotaro Sakurai

Introduction

Ryotaro Sakurai is a prominent inventor based in Kodaira, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 16 patents. His work focuses on enhancing the performance and efficiency of non-volatile memory devices.

Latest Patents

One of Sakurai's latest patents is for a non-volatile semiconductor memory device. This device features a mobile charge collector layer, a mobile charge collecting contact, and a mobile charge collecting wiring layer, all positioned adjacent to a floating gate. This innovative design reduces the number of mobile charges collected near the floating gate, allowing for high-speed operation while minimizing fluctuations in the threshold voltage. Another notable patent is for an anti-fuse memory and semiconductor storage device. This device utilizes a rectifier element of a semiconductor junction structure, which eliminates the need for a conventional control circuit. This advancement allows for the miniaturization of anti-fuse memory and semiconductor memory devices.

Career Highlights

Sakurai has worked with notable companies such as Floadia Corporation and Renesas Technology Corporation. His experience in these organizations has contributed to his expertise in semiconductor technology and innovation.

Collaborations

Some of his coworkers include Hideo Kasai and Yutaka Shinagawa. Their collaboration has likely fostered an environment of innovation and creativity in their projects.

Conclusion

Ryotaro Sakurai's contributions to semiconductor technology through his patents demonstrate his commitment to advancing the field. His innovative designs continue to influence the development of efficient memory devices.