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Obayashi Corporation

USPTO Granted Patents = 42

% Expired Patents = 11.9

Trademarks = 3

Forward Citations = 271

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112 inventors (with patents filed for the assignee):

Tomoya Kaneko (5 out of 14 patents)

Tamaki Horii (5 out of 6 patents)

Yoshihiro Tanaka (4 out of 14 patents)

4. Shigeyuki Sogo (4 out of 4 patents)

5. Koji Watanabe (4 out of 4 patents)

6. Ryuichi Chikamatsu (4 out of 4 patents)

7. Kiyoshi Miya (4 out of 4 patents)

8. Tsuyoshi Aoyama (4 out of 6 patents)

9. Takuma Nakabayashi (3 out of 3 patents)

10. Eri Ohmoto (3 out of 3 patents)

11. Satoru Doi (3 out of 3 patents)

12. Koji Hamada (3 out of 30 patents)

13. Maya Kagatani (3 out of 3 patents)

14. Tatsuya Osugi (3 out of 3 patents)

15. Takashi Tsuchiya (3 out of 3 patents)

Core Competencies:

Concrete Measurement

Waterproofing Compositions

Disinfection Apparatus

Inspection Processing

Autonomous Guided Vehicle

Shield Driving Machine

Gas Collecting Apparatus

Three-Dimensional Displacement

42 patents: Sort by Forward Citations

1. 12711734 - DIFFERENCE RECOGNITION METHOD AND DIFFERENCE RECOGNITION SYSTEM (2026-08-18),

2. 12146649 - Air supply and lighting system (2024-11-19),

3. 12038279 - Inspection processing system, inspection processing method, and inspection processing program (2024-07-16),

4. 11717588 - Disinfection apparatus (2023-08-08),

5. 11227007 - System, method, and computer-readable medium for managing image (2022-01-18),

6. 11216969 - System, method, and computer-readable medium for managing position of target (2022-01-04),

7. 11094120 - Inspection processing system, inspection processing method, and inspection processing program (2021-08-17),

8. 11077985 - Mounting base member, mounting base, and mounting method (2021-08-03),

9. D913020 - Bearer (2021-03-16),

10. D894645 - Bearer (2020-09-01),

11. 7735356 - Measuring apparatus and measuring method for concrete-forming materials (2010-06-15),

12. 7578207 - Measuring apparatus and measuring method for concrete-forming materials (2009-08-25),

13. 7490439 - Double floor structure (2009-02-17),

14. 7207212 - Device and method for weighing concrete material (2007-04-24),

15. 7000458 - Weighing equipment for concrete material (2006-02-21),

Obayashi Corporation, headquartered in Osaka, Japan, is a prominent player in the construction and engineering sector, specializing in advanced technologies for infrastructure development. The company focuses on a diverse range of core technology topics, including air supply systems, disinfection apparatus, and concrete measurement techniques. Additionally, Obayashi is involved in innovative solutions for wall reinforcement, tunneling equipment, and autonomous guided vehicles, contributing to enhanced safety and efficiency in construction processes.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

Obayashi Corporation

42 Patents

#207 in Osaka

#1,910 in Japan

#16,326 in the World

Obayashi Corporation

Forward Citations = 271

112 inventors:

Tomoya Kaneko (5 out of 14 patents)

Tamaki Horii (5 out of 6 patents)

Yoshihiro Tanaka (4 out of 14 patents)

4. Shigeyuki Sogo (4 out of 4 patents)

5. Koji Watanabe (4 out of 4 patents)

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