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For the Inventor, By the Inventor

Yokohama, Japan

Takeshi Ishizaki

This inventor holds 54 USPTO granted patents and 4 published patent applications, plus 1 CIPO patent, primarily in Semiconductor Technology (CPC class H01L). Top assignees: Hitachi, Ltd., Kabushiki Kaisha Toshiba, Toshiba Memory Corporation. Active years: 1994-2022.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takeshi Ishizaki. Retrieved from https://idiyas.com/inventor/takeshi-ishizaki

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 54 

% Patents Active = 61.1


Average Co-Inventor Count = 3.5

ph-index = 16

Forward Citations = 1,533(Granted Patents)

Forward Citations (Not Self Cited) = 1,519(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Fukaya, JP (1998)
  • Sagamihara, JP (1994 - 1999)
  • Kawasaki, JP (1995 - 2011)
  • Sunnyvale, CA (US) (2006 - 2011)
  • Yokohama, JP (2001 - 2014)
  • Kanagawa-ken, JP (2014)
  • Aichi-ken, JP (2014 - 2016)
  • Aichi, JP (2017 - 2020)
  • Nagoya, JP (2020 - 2021)
  • Nagoya Aichi, JP (2020 - 2022)

Company Filing History:

goldMedal35 out of 42,740 
 
Hitachi, Ltd.
 patents
silverMedal9 out of 53,276 
 
Kabushiki Kaisha Toshiba
 patents
bronzeMedal9 out of 2,955 
 
Toshiba Memory Corporation
 patents
4. 1 out of 3,204 
 
Kioxia Corporation
 patents

Years Active: 1994-2022

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Areas of Expertise:
Semiconductor Device
Manufacturing Method
Memory Device
Phase Change Material
Storage Device
Network System
Laser Peeling Technique
Virtual Network Management
Storage Area Network
Service Management
Connectivity Confirmation
Computer System
54 patents (USPTO):Explore Patents
1. 11296109 - Method for manufacturing semiconductor device (2022-04-05),
2. 10892300 - Storage device (2021-01-12),
3. 10727277 - Storage device (2020-07-28),
4. 10700272 - Semiconductor memory device having a phase change material (2020-06-30),
5. 10566280 - Semiconductor device and method of manufacturing the same (2020-02-18),
6. 10541250 - Method for manufacturing semiconductor device (2020-01-21),
7. 10170494 - Semiconductor device and method for manufacturing the same (2019-01-01),
8. 9911753 - Semiconductor device and method for manufacturing semiconductor device (2018-03-06),
9. 9905462 - Semiconductor device and method for manufacturing the same (2018-02-27),
10. 9780111 - Semiconductor device and method for manufacturing the same (2017-10-03),
11. 9779978 - Method of manufacturing semiconductor device and semiconductor manufacturing apparatus (2017-10-03),
12. 9673217 - Semiconductor device and method for manufacturing same (2017-06-06),
13. 9570464 - Method for manufacturing semiconductor device (2017-02-14),
14. 9412683 - Semiconductor device having barrier metal layer (2016-08-09),
15. 9018764 - Semiconductor device having barrier metal layer (2015-04-28),

Title: Takeshi Ishizaki: Pioneering Inventor from Yokohama

Introduction: Takeshi Ishizaki is a renowned inventor hailing from Yokohama, Japan, known for his groundbreaking contributions to various technological fields.

Latest Patents: Takeshi Ishizaki holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his innovative spirit and forward-thinking approach.

Career Highlights: With a career spanning over two decades, Ishizaki has worked with leading research institutions and tech companies, developing cutting-edge solutions that have revolutionized industries worldwide.

Collaborations: Throughout his career, Takeshi Ishizaki has collaborated with top engineers, scientists, and inventors, fostering a culture of innovation and excellence in all his projects.

Conclusion: Takeshi Ishizaki's passion for innovation and his relentless pursuit of technological advancement continue to inspire the next generation of inventors and shape the future of technology.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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