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For the Inventor, By the Inventor

Poughkeepsie, NY, United States of America

Toshiaki Kirihata

This inventor holds 157 USPTO granted patents and 1 EPO patent, primarily in Memory Technology (CPC class 365200). Top assignees: International Business Machines Corporation, Globalfoundries Inc., Siemens Aktiengesellschaft. Active years: 1993-2023.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshiaki Kirihata. Retrieved from https://idiyas.com/inventor/toshiaki-kirihata

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

USPTO Granted Patents = 157

% Patents Active = 79.0


Average Co-Inventor Count = 2.8

ph-index = 20

Forward Citations = 1,694(Granted Patents)

Forward Citations (Not Self Cited) = 1,633(Dec 10, 2025)


Inventors with similar research interests:

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Location History:

  • Yachiyo, JP (1993)
  • South Burlington, VT (US) (1994)
  • Matsudo, JP (1995)
  • Dutchess County, NY (US) (1998)
  • Wappingers Falls, NY (US) (1996 - 2000)
  • Hopewell Junction, NY (US) (2014)
  • Paughkeepsie, NY (US) (2017)
  • Poughkeepsie, NY (US) (1998 - 2023)

Company Filing History:

goldMedal127 out of 166,409 
 
International Business Machines Corporation
 patents
silverMedal14 out of 5,671 
 
Globalfoundries Inc.
 patents
bronzeMedal11 out of 30,886 
 
Siemens Aktiengesellschaft
 patents
4. 6 out of 1,092 
 
Globalfoundries U.S. Inc.
 patents
5. 4 out of 53,276 
 
Kabushiki Kaisha Toshiba
 patents
6. 3 out of 15,036 
 
Infineon Technologies Ag
 patents
7. 2 out of 244 
 
Infineon Technologies North America Corp.
 patents
8. 7 out of 834,570 
Other
 patents
where one patent can have more than one assignee

Years Active: 1993-2023

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Areas of Expertise:
One-Time Programmable Memory
Charge Trap Memory
Chip Authentication
Physically Unclonable Function
Data-Dependent Sensing
3D Wafer Scale Integration
Non-Volatile Memory
Hierarchical Sort Engine
Intrinsic Chip Identifier
Electronic Fuse
Dynamic Key
Fuzzy Algorithm
157 patents (USPTO):Explore Patents
1. 11694757 - Structures and methods of identifying unprogrammed bits for one-time-programmable-memory (OTPM) (2023-07-04),
2. 11417407 - Structures and methods of identifying unprogrammed bits for one-time-programmable-memory (OTPM) (2022-08-16),
3. 11380373 - Memory with read circuit for current-to-voltage slope characteristic-based sensing and method (2022-07-05),
4. 11367734 - Charge trap memory devices (2022-06-21),
5. 11329836 - Twin cell memory-based physically unclonable function (2022-05-10),
6. 11210373 - Authenticating a hardware chip using an intrinsic chip identifier (2021-12-28),
7. 11056208 - Data dependent sense amplifier with symmetric margining (2021-07-06),
8. 10685705 - Program and erase memory structures (2020-06-16),
9. 10657231 - Providing an authenticating service of a chip (2020-05-19),
10. 10613754 - Architecture and implementation of cortical system, and fabricating an architecture using 3D wafer scale integration (2020-04-07),
11. 10503402 - Architecture and implementation of cortical system, and fabricating an architecture using 3D wafer scale integration (2019-12-10),
12. 10262119 - Providing an authenticating service of a chip (2019-04-16),
13. 9886193 - Architecture and implementation of cortical system, and fabricating an architecture using 3D wafer scale integration (2018-02-06),
14. 9870979 - Double-sided segmented line architecture in 3D integration (2018-01-16),
15. 9859177 - Test method and structure for integrated circuits before complete metalization (2018-01-02),

Title: Toshiaki Kirihata: Innovator in Integrated Circuit Technology

Introduction:

Toshiaki Kirihata is a highly accomplished inventor and engineer based in Poughkeepsie, NY. With an impressive portfolio of 157 patents, Kirihata has made significant contributions to the field of integrated circuits. His expertise lies in the development of innovative methods and structures for one-time-programmable memory (OTPM) technology. This article will explore Kirihata's latest patents, career highlights, collaborations, and his impact on the industry.

Latest Patents:

Among Toshiaki Kirihata's recent patents, two notable ones stand out. The first patent is titled "Structures and Methods of Identifying Unprogrammed Bits for One-Time-Programmable Memory (OTPM)." This invention focuses on integrated circuits and presents a method for identifying unprogrammed bits in OTPM. The corresponding structure comprises a read circuit capable of performing read operations at an address for twin-cell OTPM and a comparison circuit to determine if any bit has been programmed based on the read operation.

Career Highlights:

Throughout his career, Kirihata has contributed extensively to the success of renowned technology companies. He has significantly impacted companies such as IBM and GlobalFoundries Inc. (formerly GLOBALFOUNDRIES).

At IBM, Kirihata played a crucial role in advancing integrated circuit technology. His valuable contributions helped strengthen IBM's position as a leader in the industry. Kirihata's innovative ideas and problem-solving skills have been instrumental in driving progress in the field of integrated circuits.

Collaborations:

Partnerships and collaborations play a pivotal role in innovation, and Toshiaki Kirihata has been no stranger to fruitful collaborations. He has worked alongside esteemed colleagues, including Gerhard Mueller and Subramanian Srikanteswara Iyer, both of whom have contributed significantly to the field of integrated circuits.

Conclusion:

Toshiaki Kirihata's impressive array of patents and career highlights testify to his exceptional expertise in integrated circuit technology. His contributions to advancements in OTPM and his collaborations with industry experts have solidified his position as a prominent figure in the field.

As an innovator, Kirihata continues to push the boundaries of integrated circuits and enhance the industry's capabilities. His dedication and passion for his work undoubtedly contribute to the ongoing progress and innovations within the technology sector.

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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