This inventor holds 50 USPTO granted patents and 7 published patent applications and 1 EPO patent, primarily in Toner Technology. Top assignees: Canon Kabushiki Kaisha, Minolta Camera Kabushiki Kaisha, Sharp Kabushiki Kaisha Corporation. Active years: 1989-2025.
IDiyas Innovation Intelligence. (2026). Inventor Profile: Takeshi Hashimoto. Retrieved from https://idiyas.com/inventor/takeshi-hashimoto-mibuesvs
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
USPTO Granted Patents = 50 (Patent Applications = 7)
% Patents Active = 100.0
EPO Patents = 1 (Patent Applications = 3)
Average Co-Inventor Count = 3.9
ph-index = 21
Forward Citations = 1,161(Granted Patents)
Forward Citations (Not Self Cited) = 809(Dec 10, 2025)
Location History:
- Sakai, JP (1996)
- Osaka, JP (1989 - 1998)
- Chiba, JP (1999 - 2001)
- Moriya, JP (2015 - 2021)
- Ibaraki, JP (2023 - 2024)
Company Filing History:
35 out of 93,085 
Canon Kabushiki Kaisha
8 out of 2,979 Minolta Camera Kabushiki Kaisha
5 out of 25,974 
Sharp Kabushiki Kaisha Corporation
4. 1 out of 181
Kabushiki Kaisha Pilot Corporation
5. 1 out of 305
Kanebo, Limited
6. 1 out of 5
Nihon Dennetsu Co., Ltd.
where one patent can have more than one assignee
Years Active: 1989-2025
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Areas of Expertise:
Toner
Two-Component Developer
Manufacturing Method
Thermochromic Writing Instrument
Magnetic Carrier
Image-Forming Method
Developer Replenishing Cartridge
Media Selecting Device
Channel Selecting System
3-D Texture Mapping
Z Buffer
50 patents (USPTO):Explore Patents
Couldn't find inventor
Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
7 patents pending:
IDiyas Innovation Intelligence. (2026). Inventor Profile: Takeshi Hashimoto. Retrieved from https://idiyas.com/inventor/takeshi-hashimoto-mibuesvs
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
1 patent (EPO):
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
3 patents pending (EPO):
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]