Masafumi Iwata

This inventor holds 18 USPTO granted patents and 3 published patent applications and 10 EPO patents, primarily in Elevator Control Systems. Top assignees: Mitsubishi Electric Corporation, Mitsubishi Denki Kabushiki Kaisha. Active years: 1995-2016.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masafumi Iwata. Retrieved from https://idiyas.com/inventor/masafumi-iwata

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

Calculating rank

USPTO Granted Patents = 18 (Patent Applications = 3)

% Patents Active = 44.4

EPO Patents = 10 (Patent Applications = 10)

Average Co-Inventor Count = 3.4

ph-index = 7

Forward Citations = 139(Granted Patents)

Location History:

Hyogo, JP (1995 - 1996)
Chiyoda-ku, JP (2010)
Tokyo, JP (2002 - 2016)

Company Filing History:

15 out of 16,627

Mitsubishi Electric Corporation

patents

3 out of 21,351

Mitsubishi Denki Kabushiki Kaisha

patents

Years Active: 1995-2016

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Areas of Expertise:

Multi-Car Elevator

Elevator Safety Control

Group Supervisory Control

Fire Evacuation Priority

Passenger Group Assignment

Evacuation Supporting System

Double Deck Elevator

Operation Control Profile

Temperature Control

Traffic Controlling Apparatus

Neural Network

Transportation System

18 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 9394139 - Multi-car elevator and controlling method therefor (2016-07-19),

2. 9108823 - Elevator safety control device (2015-08-18),

3. 9096410 - Multi-car elevator control device (2015-08-04),

4. 9079752 - Elevator group supervisory control system and method with park floor cancellation (2015-07-14),

5. 8839914 - Elevator system including fire evacuation priority (2014-09-23),

6. 8646581 - Elevator group management system having fellow passenger group assignment (2014-02-11),

7. 8602172 - Elevator group management system (2013-12-10),

8. 8567569 - Elevator group management system (2013-10-29),

9. 8505692 - Elevator system (2013-08-13),

10. 8493230 - Elevator evacuation supporting system (2013-07-23),

11. 8245819 - Refuge supporting device of elevator (2012-08-21),

12. 8006807 - Elevator group control apparatus (2011-08-30),

13. 7849973 - Refuge support system of double deck elevator (2010-12-14),

14. 7740112 - Elevator operation control device for selecting an operation control profile (2010-06-22),

15. 7681697 - Elevator operation control device which controls the elevator based on a sensed temperature (2010-03-23),

Title: The Innovative Contributions of Masafumi Iwata

Introduction

Masafumi Iwata is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of elevator technology, holding a total of 18 patents. His work focuses on enhancing the safety and efficiency of elevator systems, showcasing his expertise and innovative spirit.

Latest Patents

Iwata's latest patents include a multi-car elevator and a controlling method for it. This invention allows for improved coordination between adjacent elevator cars traveling in the same direction. The elevator controlling apparatus determines the shortest stopping position for the leading car and the estimated stopping position for the trailing car, ensuring a safe distance is maintained between them. Another notable patent is the elevator safety control device, which aims to reduce installation and maintenance costs while maintaining safety. This device includes an independence assurance unit that monitors safety control functions to prevent unauthorized memory access, thereby enhancing overall safety.

Career Highlights

Throughout his career, Masafumi Iwata has worked with leading companies in the industry, including Mitsubishi Electric Corporation and Mitsubishi Denki Kabushiki Kaisha. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in elevator technology.

Collaborations

Iwata has collaborated with notable colleagues such as Shiro Hikita and Naohiko Suzuki. Their combined expertise has fostered a creative environment that has led to the development of groundbreaking technologies in the elevator sector.

Conclusion

Masafumi Iwata's contributions to elevator technology through his numerous patents demonstrate his commitment to innovation and safety. His work continues to influence the industry, making elevators safer and more efficient for users worldwide.

Profile summary based on public USPTO records.