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For the Inventor, By the Inventor

Yokohama, Japan

Tooru Nakajima

USPTO Granted Patents = 8


Average Co-Inventor Count = 3.5

ph-index = 2

Forward Citations = 8(Granted Patents)


Location History:

  • Fujioka, JP (2015)
  • Yokohama, JP (2017 - 2022)

Company Filing History:

goldMedal8 out of 383 
 
Mitsubishi Pencil Company, Limited
 patents

Years Active: 2015-2022

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8 patents (USPTO):Explore Patents
1. 11472221 - Writing implement (2022-10-18),
2. 11207913 - Erasing member and erasing tool using the same (2021-12-28),
3. 10576774 - Ballpoint pen (2020-03-03),
4. 10507684 - Writing instrument (2019-12-17),
5. 10336129 - Writing implement (2019-07-02),
6. 9889701 - Writing implement (2018-02-13),
7. 9636940 - Writing instrument (2017-05-02),
8. 8944716 - Valved applicator (2015-02-03),
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