Forward Citations = 47

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13 inventors (with patents filed for the assignee):

Norio Kondo (3 out of 6 patents)

Hakumi Hagimoto (3 out of 3 patents)

Yutaka Kashima (3 out of 4 patents)

4. Masami Inoue (1 out of 10 patents)

5. Takashi Moro (1 out of 3 patents)

6. Ryuzaburo Otsuka (1 out of 1 patent)

7. Hidetsugu Yamazaki (1 out of 1 patent)

8. Seiji Tadano (1 out of 1 patent)

9. Toshihumi Yuzawa (1 out of 1 patent)

10. Kiyoshi Tsuchiya (1 out of 5 patents)

11. Tsutomu Tomisawa (1 out of 1 patent)

12. Kiichi Honma (1 out of 1 patent)

13. Masumi Inoue (1 out of 1 patent)

4 patents: Sort by Forward Citations

1. 5032039 - Underground excavator (1991-07-16),

2. 4939431 - Control system for synchronous rotation of cutter heads, for use in (1990-07-03),

3. 4797031 - Caisson sinking method (1989-01-10),

4. 4607889 - Shield tunnel boring machine (1986-08-26),

Daiho Construction Co., Ltd. is a leading construction company specializing in residential and commercial projects. With over 20 years of experience in the industry, we offer high-quality construction services, including design, planning, and project management. Our team of skilled professionals is dedicated to delivering projects on time and within budget, ensuring customer satisfaction.

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USPTO Data Jan 1 1976 - Dec 16 2025

4 Patents

#10 in all of

#7,410 in Japan

all of, Japan

Daiho Construction Co., Ltd.