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For the Inventor, By the Inventor

Sagamihara, Japan

Masahiro Kiyotoshi

This inventor holds 66 USPTO granted patents and 13 published patent applications, primarily in Semiconductor Memory (CPC class H01L). Top assignees: Kabushiki Kaisha Toshiba, Toshiba Memory Corporation, Kioxia Corporation. Active years: 1997-2024.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masahiro Kiyotoshi. Retrieved from https://idiyas.com/inventor/masahiro-kiyotoshi

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

USPTO Granted Patents = 66 

% Patents Active = 59.1

Average Co-Inventor Count = 2.1

ph-index = 13

Forward Citations = 1,805(Granted Patents)

Forward Citations (Not Self Cited) = 1,746(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Matsudo, JP (1997)
  • Kanagawa, JP (2006 - 2008)
  • Kanagawa-ken, JP (2012)
  • Mie-ken, JP (2010 - 2015)
  • Mie, JP (2013 - 2015)
  • Sagamihara, JP (1997 - 2024)
  • Yokkaichi, JP (2010 - 2024)

Company Filing History:

goldMedal60 out of 53,262 
 
Kabushiki Kaisha Toshiba
 patents
silverMedal3 out of 2,955 
 
Toshiba Memory Corporation
 patents
bronzeMedal2 out of 3,189 
 
Kioxia Corporation
 patents
4. 1 out of 834,513 
Other
 patents

Years Active: 1997-2024

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Areas of Expertise:
Semiconductor Memory
Non-Volatile Memory
Manufacturing Method
Storage Device
Semiconductor Device
Resistance RAM
Electronic Device
Memory Device
Liquid Container
3D Stacking
Thermal Management
TSV Interconnects
66 patents (USPTO):Explore Patents
1. 11937437 - Semiconductor memory and method of manufacturing the same (2024-03-19),
2. 11862484 - Semiconductor manufacturing apparatus and manufacturing method of semiconductor device (2024-01-02),
3. 11101325 - Semiconductor memory and method of manufacturing the same (2021-08-24),
4. 10056433 - Semiconductor memory and method of manufacturing the same (2018-08-21),
5. 10008509 - Non-volatile semiconductor memory device (2018-06-26),
6. 9768380 - Nonvolatile semiconductor memory device and method of manufacturing the same (2017-09-19),
7. 9711518 - Non-volatile semiconductor memory device (2017-07-18),
8. 9450181 - Semiconductor memory and method of manufacturing the same (2016-09-20),
9. 9373631 - Nonvolatile semiconductor memory device (2016-06-21),
10. 9305936 - Nonvolatile semiconductor memory device and method of manufacturing the same (2016-04-05),
11. 9293470 - Non-volatile semiconductor memory device (2016-03-22),
12. 9230975 - Nonvolatile semiconductor memory device (2016-01-05),
13. 9190262 - Method of manufacturing semiconductor device and apparatus for manufacturing semiconductor device (2015-11-17),
14. 9177809 - Nonvolatile semiconductor memory device and method of manufacturing the same (2015-11-03),
15. RE45732 - Nonvolatile semiconductor storage device and method for manufacturing same (2015-10-05),

Certainly! Here is the article about inventor Masahiro Kiyotoshi:

Title: The Inventive World of Masahiro Kiyotoshi: Pioneering Semiconductor Innovations

Introduction:

Masahiro Kiyotoshi, a prominent inventor based in Sagamihara, Japan, has made significant contributions to the field of semiconductor technology. With an impressive portfolio of 66 patents, Kiyotoshi is recognized for his pioneering work in the development of semiconductor memory devices and advanced manufacturing processes.

Latest Patents:

Among his latest patents is a groundbreaking invention titled "Semiconductor memory and method of manufacturing the same." This patent describes a semiconductor memory design that features stripe-like active areas stacked in layers, along with innovative gate electrode configurations. Additionally, Kiyotoshi's patent for a "Semiconductor manufacturing apparatus and manufacturing method of semiconductor device" demonstrates his expertise in streamlining semiconductor manufacturing processes for improved efficiency and quality.

Career Highlights:

Throughout his career, Masahiro Kiyotoshi has held key positions at Kabushiki Kaisha Toshiba and Toshiba Memory Corporation, where he has been instrumental in driving technological advancements in the semiconductor industry. His contributions have not only resulted in numerous patents but have also helped establish him as a leading figure in the field of semiconductor innovation.

Collaborations:

Collaborating with esteemed colleagues such as Kiwamu Sakuma and Akihito Yamamoto, Kiyotoshi has leveraged collective expertise and shared knowledge to push the boundaries of semiconductor technology. Together, they have spearheaded research and development initiatives that have paved the way for cutting-edge advancements in the industry.

Conclusion:

In conclusion, Masahiro Kiyotoshi stands as a trailblazer in the realm of semiconductor innovation, with a remarkable track record of patents and groundbreaking inventions. His relentless pursuit of excellence and collaborative spirit have not only elevated his own career but have also enriched the semiconductor industry as a whole. Kiyotoshi's continued dedication to innovation ensures that his legacy will endure as a driving force behind future technological advancements in the field.

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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