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For the Inventor, By the Inventor

Koganei, Japan

Shinichi Ikenaga

This inventor holds 21 USPTO granted patents, primarily in Semiconductor Memory. Top assignees: Hitachi, Ltd., Hitachi Vlsi Engineering Corp., Hitachi Ulsi Systems Co., Ltd.. Active years: 1987-2009.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shinichi Ikenaga. Retrieved from https://idiyas.com/inventor/shinichi-ikenaga

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

USPTO Granted Patents = 21

% Patents Active = 71.4

Average Co-Inventor Count = 11.3

ph-index = 10

Forward Citations = 482(Granted Patents)


Location History:

  • Kokubunji, JP (1987 - 1990)
  • Koganei, JP (1990 - 2009)

Company Filing History:

goldMedal20 out of 42,740 
 
Hitachi, Ltd.
 patents
silverMedal5 out of 182 
 
Hitachi Vlsi Engineering Corp.
 patents
bronzeMedal3 out of 336 
 
Hitachi Ulsi Systems Co., Ltd.
 patents
4. 1 out of 834,570 
Other
 patents
where one patent can have more than one assignee

Years Active: 1987-2009

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Areas of Expertise:
Semiconductor Memory Device
Defect Remedying Method
Error Correcting Means
Voltage Amplifier
Zigzag Bonding Pad
Multiple Level Storage
Current-Voltage Sense Circuit
Serial Data Access
21 patents (USPTO):Explore Patents
1. 7499340 - Semiconductor memory device and defect remedying method thereof (2009-03-03),
2. 7345929 - Semiconductor memory device and defect remedying method thereof (2008-03-18),
3. 7203101 - Semiconductor memory device and defect remedying method thereof (2007-04-10),
4. 7016236 - Semiconductor memory device and defect remedying method thereof (2006-03-21),
5. 6898130 - Semiconductor memory device and defect remedying method thereof (2005-05-24),
6. 6657901 - Semiconductor device formed in a rectangle region on a semiconductor substrate including a voltage generating circuit (2003-12-02),
7. 6515913 - Semiconductor memory device and defect remedying method thereof (2003-02-04),
8. 6335884 - Semiconductor memory device and defect remedying method thereof (2002-01-01),
9. 6212089 - Semiconductor memory device and defect remedying method thereof (2001-04-03),
10. 6160744 - Semiconductor memory device and defect remedying method thereof (2000-12-12),
11. 6049500 - Semiconductor memory device and defect remedying method thereof (2000-04-11),
12. 5854508 - Semiconductor memory device having zigzag bonding pad arrangement (1998-12-29),
13. 5602771 - Semiconductor memory device and defect remedying method thereof (1997-02-11),
14. 5579256 - Semiconductor memory device and defect remedying method thereof (1996-11-26),
15. 4949306 - Sense circuit and semiconductor memory having a current-voltage (1990-08-14),

Title: Innovations by Shinichi Ikenaga: A Pioneer in Semiconductor Technology

Introduction

Shinichi Ikenaga, a prominent inventor based in Koganei, Japan, has made significant contributions to the field of semiconductor technology, with an impressive portfolio of 21 patents. His work focuses primarily on semiconductor memory devices and methods to enhance their functionalities.

Latest Patents

One of Ikenaga's latest patents is a semiconductor memory device coupled with a defect remedying method. This invention features a semiconductor memory device formed on a semiconductor chip that comprises first memory arrays, multiple second memory arrays, a first voltage generator, and first bonding pads. The semiconductor chip is strategically divided into three rectangular regions, with the third rectangular region situated between the first and second rectangular regions. The first memory arrays are located in the first rectangular region, while the second memory arrays are positioned in the second rectangular region. Additionally, the voltage generator and first bonding pads are arranged in the third rectangular region, optimizing the layout to enhance device performance.

Career Highlights

Shinichi Ikenaga has worked with renowned companies in the semiconductor industry, notably Hitachi, Ltd. and Hitachi VLSI Engineering Corporation. His time at these companies has provided him with a robust foundation in research and development, leading to numerous innovations in memory device technologies.

Collaborations

Throughout his career, Ikenaga has collaborated with talented professionals, including Masashi Horiguchi and Kazuhiko Kajigaya. These collaborations have facilitated a productive exchange of ideas, further advancing the field of semiconductor technology.

Conclusion

Shinichi Ikenaga’s contributions in the realm of semiconductor devices reflect his commitment to innovation and excellence. His patents not only illustrate his ingenuity but also his role in shaping the future of technology in the semiconductor industry. As technology continues to evolve, inventors like Ikenaga pave the way for advancements that can significantly impact various sectors.

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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