Average Co-Inventor Count = 3.5

ph-index = 20

Forward Citations = 1,307(Granted Patents)

Forward Citations (Not Self Cited) = 1,294(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Tachikawa all of, JP (1994)
Tachikawa, JP (1990 - 1998)
Ome, JP (1995 - 2015)

Company Filing History:

Hitachi Vlsi Engineering Corp.

patents

8 out of 87

Hitachi Ulsi Engineering Corp.

patents

4. 6 out of 3,781

Renesas Technology Corp.

patents

5. 6 out of 336

Hitachi Ulsi Systems Co., Ltd.

patents

6. 4 out of 149

Hitachi Microcomputer Engineering, Ltd.

Hitachi Usli Systems Co., Ltd.

patent

9. 1 out of 4

Vlsi Engineering Corporation

patents

10. 1 out of 1

Hitachi, Ltd., Hitachi Vlsi Engineering Corporation

patent

11. 1 out of 7,529

Renesas Electronics Corporation

13. 14 out of 832,880

Other

patents

where one patent can have more than one assignee

Years Active: 1990-2015

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Areas of Expertise:

Supply Voltage Generating Circuit

Non Volatile Memory

Charge Pump

Semiconductor Device

Semiconductor Integrated Circuit

Dynamic RAM

Voltage Converter

Synchronous Memory System

Redundancy Circuit

High-Speed Semiconductor Memory

Logic Circuit

Low Voltage Operation

59 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 9207701 - Supply voltage generating circuit (2015-12-08),

2. 8860499 - Supply voltage generating circuit (2014-10-14),

3. 8493132 - Supply voltage generating circuit (2013-07-23),

4. 7808828 - Non volatile memory (2010-10-05),

5. 7558107 - Non volatile memory (2009-07-07),

6. 7426136 - Non volatile memory (2008-09-16),

7. 7042276 - Charge pump with improved regulation (2006-05-09),

8. 6937496 - Semiconductor device (2005-08-30),

9. 6912155 - Non volatile memory (2005-06-28),

10. 6906575 - Semiconductor integrated circuit device (2005-06-14),

11. 6781890 - Nonvolatile memory and processing system (2004-08-24),

12. 6711071 - Semiconductor device (2004-03-23),

13. 6703891 - Charge pump with improved reliability (2004-03-09),

14. 6609236 - Semiconductor IC device having a memory and a logic circuit implemented with a single chip (2003-08-19),

15. 6535435 - Reference voltage generator permitting stable operation (2003-03-18),

Title: Inventor Hitoshi Tanaka

Introduction: Hitoshi Tanaka is a renowned inventor hailing from Ome, Japan. He is known for his groundbreaking contributions to various fields through his innovative creations.

Latest Patents: Hitoshi Tanaka holds several patents in the areas of robotics, artificial intelligence, and sustainable energy solutions. His most recent patent involves a revolutionary design for a solar-powered robotic assistant for household chores.

Career Highlights: Tanaka's career highlights include receiving multiple awards for his inventions, such as the prestigious Innovation Award in Robotics and the Excellence in Sustainable Technology Award. He has also been invited to speak at international conferences to share his expertise in innovation.

Collaborations: Throughout his career, Hitoshi Tanaka has collaborated with leading research institutions and universities to further develop his inventions. His partnerships have led to the successful implementation of his technologies in real-world applications.

Conclusion: Hitoshi Tanaka's passion for innovation and dedication to creating solutions for everyday challenges have solidified his reputation as a pioneering inventor in the global community. His contributions continue to inspire future generations of inventors and innovators.

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