Optical device and optical communication apparatus
US-12197054-B2 · Jan 14, 2025 · US
This page is not indexed by search engines while we improve data quality.
Doi Masaharu patents
Doi Masaharu is listed as an inventor on 49 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Doi Masaharu |
| Total patents | 49 |
| First publication | Apr 16, 2015 |
| Latest publication | Jan 14, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
Optical device and optical communication apparatus
US-12044910-B2 · Jul 23, 2024 · US
Optical waveguide device and method of manufacturing optical waveguide device
US-11693291-B2 · Jul 4, 2023 · US
Optical waveguide device
US-11693290-B2 · Jul 4, 2023 · US
Optical waveguide device
US-11624965-B2 · Apr 11, 2023 · US
Transport service method, vehicle platooning method, vehicle group navigation system, self-driving vehicle capable of platooning, and grouped vehicle guidance device
US-11623663-B2 · Apr 11, 2023 · US
Optical device and optical communication apparatus
US-2023004028-A1 · Jan 5, 2023 · US
Optical device and optical communication apparatus
US-2022390775-A1 · Dec 8, 2022 · US
Optical waveguide device
US-2022050351-A1 · Feb 17, 2022 · US
Optical waveguide device
US-2021325760-A1 · Oct 21, 2021 · US
Recent patents
Latest publications not already listed above.
Optical waveguide device and method of manufacturing optical waveguide device
US-2021325761-A1 · Oct 21, 2021 · US
Conversation analysis system, conversation analysis method, and conversation analysis program
US-2021286952-A1 · Sep 16, 2021 · US
Electro-optic device
US-11086149-B2 · Aug 10, 2021 · US
Electro-optic device
US-11003044-B2 · May 11, 2021 · US
Optical modulator
US-11003043-B2 · May 11, 2021 · US
Optical modulator
US-10989980-B2 · Apr 27, 2021 · US
Electro-optic device
US-2021103165-A1 · Apr 8, 2021 · US
Electro-optic device
US-2020310216-A1 · Oct 1, 2020 · US
Transport service method, vehicle platooning method, vehicle group navigation system, self-driving vehicle capable of platooning, and grouped vehicle guidance device
US-2020298882-A1 · Sep 24, 2020 · US
Optical modulator
US-2020272020-A1 · Aug 27, 2020 · US
Electro-optic device
US-2020272021-A1 · Aug 27, 2020 · US
Optical modulator
US-2020271963-A1 · Aug 27, 2020 · US
Optical modulator, optical modulator module, and optical transmitter module
US-10754179-B2 · Aug 25, 2020 · US
Optical modulator, optical modulator module, and optical transmitter module
US-2020041824-A1 · Feb 6, 2020 · US
Optical modulator
US-10303036-B2 · May 28, 2019 · US
Optical module and optical modulator
US-10295883-B2 · May 21, 2019 · US
Optical modulator and optical module
US-10268099-B2 · Apr 23, 2019 · US
Optical module
US-10175553-B2 · Jan 8, 2019 · US
Optical modulator and optical module
US-10095080-B2 · Oct 9, 2018 · US
Optical modulator that is formed using ferroelectric substrate
US-10082683-B2 · Sep 25, 2018 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Fujitsu Optical Components Ltd | 44 |
| Tdk Corp | 9 |
| Toshiba Digital Solutions Corp | 3 |
| Tosoh Corp | 2 |
| Toshiba Kk | 1 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| G02F1/212 | 29 |
| G02F1/225 | 27 |
| G02F1/2255 | 21 |
| G02F2001/212 | 19 |
| G02F1/0316 | 17 |