logo

For the Inventor, By the Inventor

Osaka, Japan

Kabushiki Kaisha Kashiwara Seitai


USPTO Granted Patents = 3

Forward Citations = 68

Loading Chart...
Loading Chart...

2 inventors (with patents filed for the assignee):

goldMedal Yoshihiro Koyanagi (3 out of 9 patents)

silverMedal Yoshihumi Koyanagi (1 out of 1 patent)


3 patents:

1. 7066331 - Cubic cushioning material and production method thereof (2006-06-27),
2. 6508270 - Shut-off valve (2003-01-21),
3. 5388910 - Bag with a filtering check valve (1995-02-14),
logo

Company Badge

USPTO Data Jan 1 1976 - Dec 16 2025

3 Patents

#835 in Osaka

#8,766 in Japan

...
Osaka, Japan

Kabushiki Kaisha Kashiwara Seitai

Forward Citations = 68

2 inventors:

goldMedal Yoshihiro Koyanagi (3 out of 9 patents)

silverMedal Yoshihumi Koyanagi (1 out of 1 patent)

Please report any incorrect information to support@idiyas.com
Loading…