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For the Inventor, By the Inventor

Yokkaichi, Japan

Takamasa Okawa

This inventor holds 24 USPTO granted patents and 2 published patent applications, primarily in Semiconductor Memory. Top assignees: Kabushiki Kaisha Toshiba, Toshiba Memory Corporation, Sandisk Corporation. Active years: 2014-2020.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takamasa Okawa. Retrieved from https://idiyas.com/inventor/takamasa-okawa

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

USPTO Granted Patents = 24 

% Patents Active = 91.7

Average Co-Inventor Count = 3.8

ph-index = 3

Forward Citations = 32(Granted Patents)


Location History:

  • Mie-ken, JP (2015 - 2016)
  • Yokkaichi, JP (2014 - 2020)
  • Yokkaichi Mie, JP (2020)

Company Filing History:

goldMedal19 out of 53,262 
 
Kabushiki Kaisha Toshiba
 patents
silverMedal5 out of 2,955 
 
Toshiba Memory Corporation
 patents
bronzeMedal1 out of 1,339 
 
Sandisk Corporation
 patents
where one patent can have more than one assignee

Years Active: 2014-2020

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Areas of Expertise:
Semiconductor Device
Memory Device
Nonvolatile Memory
Three-Dimensional Memory
Resistance Change Memory
Contact Plugs
Voltage Biasing
Data Control
Protective Resistance Film
Manufacturing Method
Production Method
Memory System
24 patents (USPTO):Explore Patents
1. 10692876 - Semiconductor device and method of manufacturing the same (2020-06-23),
2. 10629612 - Memory device (2020-04-21),
3. 10115731 - Semiconductor memory device (2018-10-30),
4. 9831121 - Semiconductor memory device with contact plugs extending inside contact connection portions (2017-11-28),
5. 9780147 - Semiconductor memory device (2017-10-03),
6. 9679911 - Semiconductor memory device and production method thereof (2017-06-13),
7. 9437296 - Three-dimensional resistive memory device with adjustable voltage biasing (2016-09-06),
8. 9379165 - Semiconductor memory device (2016-06-28),
9. 9368555 - Semiconductor memory device (2016-06-14),
10. 9311995 - Semiconductor memory device and control method thereof (2016-04-12),
11. 9286978 - Nonvolatile semiconductor memory device (2016-03-15),
12. 9281345 - Resistance change type memory device with three-dimensional structure (2016-03-08),
13. 9252358 - Semiconductor memory device and method of manufacturing the same (2016-02-02),
14. 9224469 - Semiconductor memory device and memory system (2015-12-29),
15. 9214228 - Semiconductor memory device and method of forming thereof (2015-12-15),

Title: **Takamasa Okawa: Innovator in Semiconductor Technology**

Introduction

Takamasa Okawa, a prolific inventor based in Yokkaichi, Japan, holds an impressive portfolio of 24 patents. His contributions primarily focus on advancements in semiconductor devices and memory technologies, significantly impacting the electronics industry.

Latest Patents

Among his latest patents, Okawa has developed a **semiconductor device and method of manufacturing the same**. This innovation features a first film with separated first electrode layers and includes intricate elements like columnar portions housing charge storage and semiconductor layers. Another noteworthy patent is for a **memory device** that includes a complex arrangement of electrode layers and columnar bodies, each contributing uniquely to the device's functionality. This blend of technologies illustrates Okawa's expertise in the field and his commitment to innovating semiconductor solutions.

Career Highlights

Okawa has been associated with notable companies such as Kabushiki Kaisha Toshiba and Toshiba Memory Corporation. His work at these institutions highlights his role in advancing technologies that have shaped modern electronics, particularly in memory solutions and semiconductor devices.

Collaborations

Throughout his career, Okawa has collaborated with esteemed colleagues like Hiroshi Kanno and Takayuki Tsukamoto. These partnerships have enriched his work, fostering a collaborative environment that promotes innovation and excellence in semiconductor technology.

Conclusion

Takamasa Okawa stands out as a significant figure in semiconductor innovation. With a solid foundation of patents and collaborations, his work continues to influence the electronics sector, paving the way for future advancements that enhance the efficiency and capabilities of semiconductor devices.

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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