Natsumi Saito

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Nara, JP

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Patents Grantslast 30 patents

Information Patent Grant
Pen and pen refill having a longitudinally extending groove for tra...
- Patent number 10,455,919
- Issue date Oct 29, 2019
- Kuretake Co., Ltd.
- Natsumi Saito
- A45 - HAND OR TRAVELLING ARTICLES
Information Patent Grant
Pen and Pen Refill
- Patent number 10,172,431
- Issue date Jan 8, 2019
- Kuretake Co., Ltd.
- Natsumi Saito
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

Information Patent Application
Pen and Pen Refill
- Publication number 20170311696
- Publication date Nov 2, 2017
- Kuretake Co., Ltd.
- Natsumi Saito
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Application
Pen and Pen Refill
- Publication number 20170295906
- Publication date Oct 19, 2017
- Kuretake Co., Ltd.
- Natsumi Saito
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES