For the Inventor, By the Inventor

Enter assignee name

Oohiro Works, Ltd.

USPTO Granted Patents = 66

% Expired Patents = 12.1

Forward Citations = 380

Loading Chart...

Loading Chart...

10 inventors (with patents filed for the assignee):

Nobuyuki Minami (32 out of 32 patents)

Hirohisa Shimizu (16 out of 17 patents)

Kazuo Ooyama (10 out of 10 patents)

4. Toshiaki Kawakami (3 out of 3 patents)

5. Toshiyuki Sato (3 out of 4 patents)

6. Hideaki Miyoshi (2 out of 7 patents)

7. Tetsuji Hatanaka (1 out of 2 patents)

8. Yoshikazu Ishimura (1 out of 1 patent)

9. Tadashi Ijichi (1 out of 1 patent)

10. Yasuke Hirota (1 out of 1 patent)

Core Competencies:

Automatic Hair Washer

Hair Processing Accelerator

Beauty Chair

Hair Washing Apparatus

Facial Treatment Device

Pedestal Sink

Swivel Pedestal

Waterproof Sheet

Nail Table

Dressing Mirror

Barber Chair

Hair Treatment Device

66 patents: Sort by Forward Citations

1. 6761339 - Leg part for a barber or beauty chair (2004-07-13),

2. D489481 - Automatic hair washing machine (2004-05-05),

3. D488586 - Automatic hair washer (2004-04-14),

4. D488257 - Automatic hair washer (2004-04-07),

5. 6679908 - Facial treatment device (2004-01-20),

6. D482820 - Automatic hair washer (2003-11-26),

7. 6615418 - Automatic hair washer (2003-09-09),

8. 6609759 - Chair and stand for chair (2003-08-26),

9. 6604251 - Hair washing stand (2003-08-12),

10. D475158 - Hair washer (2003-05-28),

11. D474562 - Hair processing accelerator (2003-05-14),

12. 6526605 - Automatic hair washer (2003-03-04),

13. D468483 - Hair processing accelerator (2003-01-08),

14. 6463597 - Hair washing apparatus (2002-10-15),

15. D462423 - Pedestal sink for washing hair (2002-09-04),

Oohiro Works, Ltd. is a leading design and construction company specializing in modern architectural projects. With a focus on innovative and sustainable designs, Oohiro Works has established a reputation for delivering high-quality and aesthetically pleasing buildings. From concept to completion, the company is committed to exceeding client expectations and creating spaces that inspire and function seamlessly. Visit our website to learn more about our services and portfolio.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Sep 22 2026

66 Patents

#154 in Osaka

#1,456 in Japan

#11,144 in the World

Oohiro Works, Ltd.

Forward Citations = 380

10 inventors:

Nobuyuki Minami (32 out of 32 patents)

Hirohisa Shimizu (16 out of 17 patents)

Kazuo Ooyama (10 out of 10 patents)

4. Toshiaki Kawakami (3 out of 3 patents)

5. Toshiyuki Sato (3 out of 4 patents)

Please report any incorrect information to [email protected]

Loading…