Keiichi Tsutsui

This inventor holds 54 USPTO granted patents and 11 published patent applications and 5 EPO patents, primarily in Memory Control Systems (CPC class G06F). Top assignees: Sony Corporation, Renesas Technology Corp., Sony Kabushiki Kaisha. Active years: 1997-2020.

USPTO Granted Patents = 54 (Patent Applications = 11)

% Patents Active = 55.6

EPO Patents = 5 (Patent Applications = 4)

Average Co-Inventor Count = 2.7

ph-index = 10

Forward Citations = 436(Granted Patents)

Forward Citations (Not Self Cited) = 430(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Tokyo, JP (2007 - 2014)
Kanagawa, JP (1997 - 2020)

Company Filing History:

Renesas Technology Corp.

patents

4 out of 27

Sony Kabushiki Kaisha

where one patent can have more than one assignee

Years Active: 1997-2020

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Areas of Expertise:

Memory Controller

Storage Device

Information Processing System

Error Detection

Nonvolatile Memory

Data Retention

Storage Control

Memory System

Optical Recording

Servo Writer

Variable Resistance

Card-Type Peripheral

54 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 10545804 - Memory controller, memory system, and memory controller control method (2020-01-28),

2. 10031865 - Memory system, storage device, and method for controlling memory system (2018-07-24),

3. 9886399 - Storage control device, storage device, information processing system, and storage control method therefor (2018-02-06),

4. 9836392 - Storage control apparatus to control pre-processing operations (2017-12-05),

5. 9836312 - Storage control device, storage device, and storage control method thereof (2017-12-05),

6. 9817712 - Storage control apparatus, storage apparatus, information processing system, and storage control method (2017-11-14),

7. 9542270 - Storage control device, storage device, information processing system and storage control method (2017-01-10),

8. 9405608 - Storage controller, storage device, information processing system, and storage control method (2016-08-02),

9. 9396132 - Storage control device and system to improve data retention in variable resistance memory cells (2016-07-19),

10. 9361952 - Storage controlling apparatus, memory system, information processing system and storage controlling method (2016-06-07),

11. 9280455 - Memory control device, non-volatile memory, and memory control method (2016-03-08),

12. 9229714 - Memory control apparatus, memory apparatus, information processing system, and processing method for use therewith (2016-01-05),

13. 9202563 - Storage controlling apparatus, storage apparatus and processing method (2015-12-01),

14. 9176811 - Storage control apparatus, storage apparatus, information processing system, and storage control method (2015-11-03),

15. 9170893 - Method and system for selecting region of a nonvolatile memory (2015-10-27),

Title: The Innovative Journey of Keiichi Tsutsui

Introduction:

Keiichi Tsutsui, a visionary inventor hailing from Kanagawa, Japan, has made significant contributions to the field of technology through his groundbreaking innovations and inventions.

Latest Patents:

Keiichi Tsutsui holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his commitment to driving progress and sustainability through his work.

Career Highlights:

With a career spanning over two decades, Keiichi Tsutsui has worked with leading tech companies in Japan, spearheading research and development projects that have led to the creation of cutting-edge products and solutions.

Collaborations:

Throughout his career, Keiichi Tsutsui has collaborated with top researchers, engineers, and scientists both locally and internationally, fostering a culture of innovation and knowledge exchange to push the boundaries of technological advancement.

Conclusion:

Keiichi Tsutsui's relentless pursuit of innovation and his passion for creating a better future through technology make him a true pioneer in the world of inventions. His work continues to inspire and shape the landscape of the tech industry, leaving a lasting impact on generations to come.