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For the Inventor, By the Inventor

Tokyo, Japan

Haruhito Shimizu

This inventor holds 9 USPTO granted patents. Top assignee: Nec Corporation. Active years: 1988-1999.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Haruhito Shimizu. Retrieved from https://idiyas.com/inventor/haruhito-shimizu

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

USPTO Granted Patents = 9

% Patents Active = 100.0

Average Co-Inventor Count = 1.1

ph-index = 7

Forward Citations = 151(Granted Patents)


Company Filing History:

goldMedal9 out of 36,718 
 
Nec Corporation
 patents

Years Active: 1988-1999

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9 patents (USPTO):Explore Patents
1. 5960142 - Peltier cooler and semiconductor laser module using Peltier cooler (1999-09-28),
2. 5706302 - Temperature control type semiconductor laser device (1998-01-06),
3. 5684632 - Variable wavelength optical filter (1997-11-04),
4. 5603570 - Constant-temperature control using surroundings temperature of a device (1997-02-18),
5. 5307197 - Optical circuit for a polarization diversity receiver (1994-04-26),
6. 5007693 - Method for controlling polarizations of signal lights in an optical (1991-04-16),
7. 5004312 - Method for controlling a polarization of light (1991-04-02),
8. 4898441 - Polarization controller (1990-02-06),
9. 4752120 - Polarization controlling device comprising a beam splitter for (1988-06-21),

Title: Haruhito Shimizu: Innovator in Semiconductor Technology

Introduction

Haruhito Shimizu is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 9 patents. His innovative work focuses on enhancing the efficiency and stability of semiconductor devices.

Latest Patents

Shimizu's latest patents include a Peltier cooler and a semiconductor laser module utilizing the Peltier cooler. The Peltier cooler features a unique structure where a Peltier device is sandwiched between two insulating substrate parts. This design allows for precise and stable fixing of metal frames through laser welding, preventing solder creep and ensuring long-term stability of the optical system. Additionally, his temperature control type semiconductor laser device incorporates multiple Peltier elements and ceramic substrates, which are connected through metallized electrodes. This design eliminates the need for low-temperature solder, further enhancing the reliability of the device.

Career Highlights

Haruhito Shimizu is currently associated with NEC Corporation, where he continues to push the boundaries of semiconductor technology. His work has been instrumental in developing advanced cooling solutions for semiconductor devices, which are critical for maintaining performance in various applications.

Collaborations

Shimizu has collaborated with notable colleagues, including Takashi Tanabe and Shuntaro Yamazaki. Their combined expertise has contributed to the successful development of innovative technologies in the semiconductor field.

Conclusion

Haruhito Shimizu's contributions to semiconductor technology through his patents and collaborations highlight his role as a leading inventor in the industry. His innovative designs continue to pave the way for advancements in electronic devices.

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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