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For the Inventor, By the Inventor

Hiratsuka, Japan

Masao Hagiwara

This inventor holds 13 USPTO granted patents. Top assignees: Kabushiki Kaisha Komatsu Seisakusho, Komatsu Corporation. Active years: 1992-2005.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masao Hagiwara. Retrieved from https://idiyas.com/inventor/masao-hagiwara

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

USPTO Granted Patents = 13

% Patents Active = 92.3

Average Co-Inventor Count = 2.2

ph-index = 7

Forward Citations = 135(Granted Patents)


Location History:

  • Kanagawa, JP (1992 - 1993)
  • Hiratusuka, JP (1998)
  • Hiratsuka, JP (1994 - 2005)

Company Filing History:

goldMedal9 out of 1,009 
 
Kabushiki Kaisha Komatsu Seisakusho
 patents
silverMedal4 out of 2,817 
 
Komatsu Corporation
 patents

Years Active: 1992-2005

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13 patents (USPTO):Explore Patents
1. 6839216 - Solenoid driving device (2005-01-04),
2. 6594292 - Saturable reactor and power source apparatus for pulse laser utilizing same (2003-07-15),
3. 5844786 - DC-DC converter circuit and inductive load driver using it (1998-12-01),
4. 5784308 - Binary subtraction device (1998-07-21),
5. 5773969 - DC-DC converter circuit and inductive load drive device using DC-DC (1998-06-30),
6. 5587995 - Serial controller (1996-12-24),
7. 5461617 - Serial controller (1995-10-24),
8. 5276367 - Offset drift reducing device for use in a differential amplification (1994-01-04),
9. 5204865 - Data extracting circuit for serial control apparatus (1993-04-20),
10. 5170338 - Apparatus for carrying out serial control and method of controlling said (1992-12-08),
11. 5163056 - Apparatus for carrying out serial control (1992-11-10),
12. 5105426 - Device for detecting the position of broken line in a series controller (1992-04-14),
13. 5095417 - Apparatus for carrying out serial control (1992-03-10),

Title: Masao Hagiwara: Innovator in Solenoid and Pulse Laser Technology

Introduction

Masao Hagiwara is a prominent inventor based in Hiratsuka, Japan. He holds a total of 13 patents, showcasing his significant contributions to the fields of solenoid technology and pulse laser systems. His innovative designs have paved the way for advancements in electrical engineering and automation.

Latest Patents

Hagiwara's latest patents include a solenoid driving device designed to reduce the number of signal lines required for connecting a current detector and a solenoid. This invention simplifies the connection process, allowing for a more efficient design with only three terminals needed for the controller and solenoids. Another notable patent is for a saturable reactor and power source apparatus for pulse lasers. This technology utilizes a saturable magnetic core to control the current flow, enhancing the performance of pulse lasers.

Career Highlights

Throughout his career, Hagiwara has worked with notable companies such as Komatsu Seisakusho and Komatsu Corporation. His experience in these organizations has contributed to his expertise in developing innovative solutions in his field.

Collaborations

Hagiwara has collaborated with several talented individuals, including Masakazu Moritoki and Makoto Takebe. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Masao Hagiwara's contributions to solenoid and pulse laser technology highlight his role as a key innovator in the industry. His patents reflect a commitment to advancing electrical engineering and automation, making a lasting impact on the field.

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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