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For the Inventor, By the Inventor

Hyogo, Japan

Kiyohiro Furutani

This inventor holds 124 USPTO granted patents and 2 published patent applications, primarily in Semiconductor Devices (CPC class 365201). Top assignees: Mitsubishi Denki Kabushiki Kaisha, Renesas Technology Corp., Elpida Memory, Inc.. Active years: 1987-2022.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kiyohiro Furutani. Retrieved from https://idiyas.com/inventor/kiyohiro-furutani

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

USPTO Granted Patents = 124 

% Patents Active = 83.1

Average Co-Inventor Count = 2.1

ph-index = 24

Forward Citations = 2,468(Granted Patents)

Forward Citations (Not Self Cited) = 2,441(Dec 10, 2025)


Inventors with similar research interests:

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Location History:

  • Hyogo-ken, JP (1989)
  • Kyogo, JP (1998)
  • Itami, JP (1987 - 1999)
  • Hyogo, JP (1988 - 2011)
  • Chuo-ku, JP (2012 - 2013)
  • Tokyo, JP (1997 - 2022)
  • Nishinomiya, JP (2021 - 2022)

Company Filing History:

goldMedal96 out of 21,351 
 
Mitsubishi Denki Kabushiki Kaisha
 patents
silverMedal11 out of 3,781 
 
Renesas Technology Corp.
 patents
bronzeMedal5 out of 1,458 
 
Elpida Memory, Inc.
 patents
4. 5 out of 39,222 
 
Micron Technology Incorporated
 patents
5. 5 out of 377 
 
Ps4 Luxco S.a.r.l.
 patents
6. 1 out of 7,654 
 
Renesas Electronics Corporation
 patents
7. 1 out of 834,513 
Other
 patents

Years Active: 1987-2022

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Areas of Expertise:
Semiconductor Device
Memory Reliability
Refresh Control Circuit
Low Power Consumption
Sensor Integration
High Voltage Generation
Data Reading Enhancement
Leakage Current Prevention
Testing Functionality
Chip Area Reduction
Standby Current Control
Synchronous Memory
124 patents (USPTO):Explore Patents
1. 11335393 - Semiconductor device performing refresh operation in deep sleep mode (2022-05-17),
2. 11274977 - Semiconductor device including sensor (2022-03-15),
3. 10923171 - Semiconductor device performing refresh operation in deep sleep mode (2021-02-16),
4. 10168233 - Semiconductor device including sensor (2019-01-01),
5. 9618562 - Semiconductor device (2017-04-11),
6. 9355705 - Semiconductor device, method for controlling the same, and semiconductor system (2016-05-31),
7. 9136844 - Semiconductor device having level shifter (2015-09-15),
8. 8995216 - Semiconductor device with refresh control circuit (2015-03-31),
9. 8971132 - Semiconductor device, method for controlling the same, and semiconductor system (2015-03-03),
10. 8908457 - Semiconductor device (2014-12-09),
11. 8675422 - Semiconductor device (2014-03-18),
12. 8462560 - Semiconductor device, method for controlling the same, and semiconductor system (2013-06-11),
13. 8362827 - Semiconductor device including transistors that exercise control to reduce standby current (2013-01-29),
14. 8300480 - Semiconductor device having sense amplifiers supplied with an over-drive voltage in a normal mode and supplied with a step-down voltage in a refresh mode (2012-10-30),
15. 8248879 - Semiconductor device with refresh control circuit (2012-08-21),

Title: Kiyohiro Furutani: Pioneering Innovation in Semiconductor Technology

Introduction:

Kiyohiro Furutani, an eminent inventor from Hyogo, Japan, has left an indelible mark on the field of semiconductor technology with his significant contributions. With an impressive tally of 124 patents to his name, Furutani's inventive spirit and dedication have brought forth groundbreaking advancements in the industry. This article delves into his latest patents, career highlights, notable collaborations, and his lasting impact on the world of innovation.

Latest Patents:

Furutani's recent patents are a testament to his forward-thinking vision and expertise. One such invention is a semiconductor device designed to perform refresh operations in deep sleep mode. This apparatus comprises a memory cell array, a first counter circuit, a burst clock generator, and a row address control circuit. The refresh operation, triggered by burst pulses, ensures efficient usage of the memory cell array.

In addition, Furutani has also contributed to the development of a semiconductor device equipped with sensors. This invention includes a sensor with multiple sense nodes, first and second latch circuits, and a selector. The seamless integration of these components enables efficient data collection and processing.

Career Highlights:

Kiyohiro Furutani has had a successful career, primarily working for prominent technology companies. Among these, Mitsubishi Denki Kabushiki Kaisha and Renesas Technology Corp. played pivotal roles in nurturing his inventive spirit. Furutani's tenure at these companies provided him with the resources and collaborative opportunities necessary to innovate and push the boundaries of semiconductor technology.

Collaborations:

Throughout his career, Furutani has had the privilege of collaborating with exceptional individuals within the industry. Noteworthy among his coworkers are Kazutami Arimoto and Koichiro Mashiko. Their collective expertise and shared passion for innovation have undoubtedly influenced each other's work while fostering a culture of excellence.

Conclusion:

Kiyohiro Furutani's remarkable journey as an inventor in the field of semiconductor technology has led to the creation of numerous groundbreaking patents. His contributions have significantly advanced the capabilities of semiconductor devices, addressing technical challenges and opening doors to new possibilities. With an impressive list of patents and a legacy of collaboration and innovation, Furutani continues to shape the future of the industry, cementing his status as a true visionary in the realm of patents and inventions.

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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