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For the Inventor, By the Inventor

Ibaraki, Japan

Masao Kajitani

This inventor holds 11 USPTO granted patents. Top assignee: Smc Corporation. Active years: 2002-2008.

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

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

USPTO Granted Patents = 11

% Patents Active = 63.6

Average Co-Inventor Count = 1.2

ph-index = 5

Forward Citations = 106(Granted Patents)


Location History:

  • Tsukuba-gun, JP (2002 - 2006)
  • Ibaraki, JP (2002 - 2008)

Company Filing History:

goldMedal11 out of 1,491 
 
Smc Corporation
 patents

Years Active: 2002-2008

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11 patents (USPTO):Explore Patents
1. 7328881 - Evacuating valve (2008-02-12),
2. 7168676 - Two-port valve for vacuum operation (2007-01-30),
3. 7163025 - Vacuum regulating valve (2007-01-16),
4. 7117886 - Vacuum regulating valve (2006-10-10),
5. 7070159 - Vacuum regulating valve (2006-07-04),
6. 7036790 - Vacuum pressure regulating valve (2006-05-02),
7. 7011295 - Vacuum regulating valve (2006-03-14),
8. 6814338 - Two-port vacuum valve capable of adjusting valve-opening (2004-11-09),
9. 6581635 - Pilot-type two-port vacuum valve (2003-06-24),
10. 6494229 - Pilot-type two-port vacuum valve (2002-12-17),
11. 6491059 - Smooth exhaust valve (2002-12-10),

Title: The Innovative Contributions of Masao Kajitani

Introduction

Masao Kajitani is a prominent inventor based in Ibaraki, Japan, known for his significant contributions to the field of vacuum technology. With a total of 11 patents to his name, Kajitani has developed innovative solutions that enhance the efficiency and functionality of vacuum systems.

Latest Patents

Among his latest inventions is the evacuating valve, which features a chamber port structure designed to connect to a vacuum vessel where plasma is produced. This valve includes a pump port structure linked to a vacuum pump, a valve casing that defines a passage between the two structures, and a valve mechanism for regulating the flow. The design incorporates at least two expanded parts within the chamber port structure, allowing the valve element to effectively seal against the valve seat. Another notable patent is the two-port valve for vacuum operation, which allows for a gradual opening of the fluid passage between two ports. This innovative design utilizes two pistons to control the valve member's movement, ensuring a phased opening without rapid flow rates.

Career Highlights

Kajitani's career is marked by his dedication to advancing vacuum technology through his inventive spirit. His work at SMC Corporation has positioned him as a key player in the development of cutting-edge vacuum solutions. His patents reflect a deep understanding of the complexities involved in vacuum systems and a commitment to improving their performance.

Collaborations

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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