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For the Inventor, By the Inventor

Hidaka, Japan

Sadayuki Ohkuma

This inventor holds 16 USPTO granted patents, primarily in Semiconductor Devices. Top assignees: Hitachi, Ltd., Hitachi Vlsi Engineering Corp., Hitachi Ltd., and Hitachi Vlsi Engineering Corp.. Active years: 1992-2010.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Sadayuki Ohkuma. Retrieved from https://idiyas.com/inventor/sadayuki-ohkuma

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

Calculating rank
USPTO Granted Patents = 16

% Patents Active = 75.0

Average Co-Inventor Count = 5.1

ph-index = 7

Forward Citations = 175(Granted Patents)


Location History:

  • Ohme, JP (1992 - 1996)
  • Oume, JP (1997)
  • Hidaka, JP (2001 - 2010)

Company Filing History:

goldMedal14 out of 42,752 
 
Hitachi, Ltd.
 patents
silverMedal3 out of 182 
 
Hitachi Vlsi Engineering Corp.
 patents
bronzeMedal1 out of 2 
 
Hitachi Ltd., and Hitachi Vlsi Engineering Corp.
 patents
4. 1 out of 6 
 
Rising Silicon, Inc.
 patents
5. 1 out of 4 
 
Vlsi Engineering Corporation
 patents
where one patent can have more than one assignee

Years Active: 1992-2010

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Areas of Expertise:
Power Supply Control
Memory Arrays
Power Consumption
Static RAM
Synchronous DRAM
Control Circuit
Power Down Mode
Semiconductor Memory
16 patents (USPTO):Explore Patents
1. 7688670 - Semiconductor device with improved power supply control for a plurality of memory arrays (2010-03-30),
2. 7411856 - Semiconductor device with improved power supply arrangement (2008-08-12),
3. 7411855 - Semiconductor device with improved power supply arrangement (2008-08-12),
4. 7298662 - Semiconductor device with power down arrangement for reduce power consumption (2007-11-20),
5. 7082074 - Semiconductor device having a power down mode (2006-07-25),
6. 7072202 - Semiconductor device having a power down mode (2006-07-04),
7. 6870790 - Semiconductor device having a power down mode (2005-03-22),
8. 6680875 - Semiconductor device, such as a synchronous DRAM, including a control circuit for reducing power consumption (2004-01-20),
9. 6195306 - Semiconductor device (2001-02-27),
10. 5638335 - Semiconductor device (1997-06-10),
11. 5497353 - Semiconductor memory device (1996-03-05),
12. 5436870 - Semiconductor memory device (1995-07-25),
13. 5313423 - Semiconductor memory device (1994-05-17),
14. 5289428 - Semiconductor memory device (1994-02-22),
15. 5274594 - Static RAM (1993-12-28),

Title: Sadayuki Ohkuma: Pioneering Inventor from Hidaka

Introduction: Sadayuki Ohkuma is a renowned inventor hailing from Hidaka, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Ohkuma's latest patents focus on advancements in renewable energy technologies, particularly in the development of solar power systems that are more efficient and cost-effective.

Career Highlights: With a career spanning over two decades, Ohkuma has worked tirelessly to bring his innovative ideas to life, holding numerous patents in the areas of clean energy, sustainable agriculture, and smart home technologies.

Collaborations: Throughout his career, Ohkuma has collaborated with leading research institutions, universities, and tech companies to further his inventions and bring them to the market, showcasing his dedication to pushing the boundaries of innovation.

Conclusion: Sadayuki Ohkuma's passion for innovation and his relentless drive to create a more sustainable future through his inventions have solidified his position as a trailblazing inventor in the tech industry.

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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