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Forward Citations = 141

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6 inventors (with patents filed for the assignee):

Kunihiko Takasaki (5 out of 7 patents)

Naoyuki Sugimoto (2 out of 2 patents)

Tetsuo Takahashi (1 out of 168 patents)

4. Tooru Tahara (1 out of 1 patent)

5. Kunuhiko Takasaki (1 out of 1 patent)

6. Hideaki Takimoto (1 out of 1 patent)

11 patents: Sort by Forward Citations

1. 4704884 - Double-acting locking device for joint control (1987-11-10),

2. 4704882 - Door handle latch and lock mechanism (1987-11-10),

3. 4650230 - Latch and lock mechanism for door handle (1987-03-17),

4. 4631777 - Gravity door hinge (1986-12-30),

5. D285043 - Self-closing door hinge (1986-08-12),

6. 4594505 - Photoelectric key switch device with notched rotor (1986-06-10),

7. 4580019 - Push-rotation type key switch device (1986-04-01),

8. 4547008 - Lock for refrigerator or the like which can be unlocked from inside (1985-10-15),

9. 4546628 - Handle device for doors (1985-10-15),

10. 4486041 - Door handle unit (1984-12-04),

11. 4198552 - Key operated switch lock assembly (1980-04-15),

Takigen Seizou Co., Ltd. is a leading manufacturer of industrial hardware, specializing in products such as latches, handles, hinges, and cam locks. With over 50 years of experience, Takigen's high-quality products are used in various industries including automotive, aerospace, and medical equipment. The company is committed to innovation, customer satisfaction, and environmental sustainability.

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Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

11 Patents

#1,591 in Tokyo

#4,039 in Japan

#50,159 in the World

Tokyo, Japan

Takigen Seizou Co., Ltd.