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For the Inventor, By the Inventor

Osaka, Japan

Nohken Inc.


USPTO Granted Patents = 8



Trademarks = 2

Forward Citations = 125

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7 inventors (with patents filed for the assignee):

goldMedal Hiroshi Kawakatsu (4 out of 4 patents)

silverMedal Kazuhiro Wakabayashi (2 out of 2 patents)

bronzeMedal Takayuki Umezawa (2 out of 2 patents)

4.  Kouichi Tanaka (1 out of 4 patents)

5.  Tadamitsu Iritani (1 out of 2 patents)

6.  Hiroshi Uematsu (1 out of 1 patent)

7.  Takao Kawakita (1 out of 6 patents)


8 patents:

1. 7479921 - Distance measuring device, distance measuring method and distance measuring program (2009-01-20),
2. 6922065 - Coil impendance detection method and object detection method and apparatus using the same (2005-07-26),
3. 6769804 - Temperature measuring method, object detecting method and object detecting device with vibrating-type level sensor (2004-08-03),
4. 6292104 - Capacitance type detector (2001-09-18),
5. 6105425 - Vibration type level detector (2000-08-22),
6. 6101873 - Level sensor (2000-08-15),
7. 5247832 - Vibrator-type level sensor (1993-09-28),
8. 4740726 - Vibrator-type level sensor (1988-04-26),
Nohken Inc. is a leading provider of level sensors and control equipment for the industrial and environmental markets. With a focus on innovation and quality, Nohken offers a wide range of products including float switches, ultrasonic sensors, and level transmitters. Their reliable and accurate solutions are used in a variety of industries such as water treatment, chemical processing, and food and beverage production.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Jan 6 2026

8 Patents

#470 in Osaka

#4,920 in Japan

...
Osaka, Japan

Nohken Inc.

Forward Citations = 125

7 inventors:

goldMedal Hiroshi Kawakatsu (4 out of 4 patents)

silverMedal Kazuhiro Wakabayashi (2 out of 2 patents)

bronzeMedal Takayuki Umezawa (2 out of 2 patents)

4.  Kouichi Tanaka (1 out of 4 patents)

5.  Tadamitsu Iritani (1 out of 2 patents)

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