Inventor
SHIGETAKA HAMADA
Inventor
JP
Overview
Patents· 17 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Sprimary
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light18%
H02JElectric power networks16%
B60LPropulsion of electrically-propelled vehicles11%
G05BControl or regulating systems in general9%
Y02TClimate change mitigation technologies related to transportation9%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution7%
Y04SSystems integrating technologies related to power network operation, communication or information technologies for improving the electrical power generation, transmission, distribution, management or usage, i.e. smart grids7%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein4%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes4%
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy4%
PatentTitleYear
12,477,839Semiconductor photodetector202512,237,685Power management system, server, and power supply and demand adjustment202512,218,480Semiconductor optical amplifier integrated laser202512,194,878Server and power management method202512,100,929Semiconductor optical device and method for manufacturing the same202412,046,870Optical semiconductor device202412,027,822Optical semiconductor device202412,024,043Server and power management method202411,929,612Server and power management method202411,912,154Power management system, server, and power supply and demand adjustment method202411,870,116Power management system, server, and power supply and demand adjustment method202411,817,674Semiconductor optical device and method for manufacturing the same202311,764,377Fuel cell system202311,710,940Semiconductor optical device202311,710,983Electric power system and server202311,552,448Semiconductor optical amplifier integrated laser202311,283,242Semiconductor optical device2022Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2022–2025Patents assigned to LUMENTUM JAPAN INC (8)· patent assignee history
2022–2025Based in JP· patent location history
2023–2025Patents assigned to TOYOTA MOTOR CO LTD (8)· patent assignee history
2025Patents assigned to LUMENTUM OPERATIONS LLC (1)· patent assignee history
2025Patents assigned to Lumentum Operations (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| LUMENTUM JAPAN INC | 8 | 2022–2025 |
| TOYOTA MOTOR CO LTD | 8 | 2023–2025 |
| LUMENTUM OPERATIONS LLC | 1 | 2025 |
| Lumentum Operations | 1 | 2025 |
Locations
| Location | Patents | Span |
|---|---|---|
| JP | 17 | 2022–2025 |