Inventor
MASAHIKO HAYAKAWA
Inventor
JP
Overview
Patents· 14 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Gprimary
G03GElectrography19%
H10DInorganic electric semiconductor devices19%
H01LSemiconductor devices16%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein8%
G09GArrangements or circuits for control of indicating devices using static means to present variable information8%
H10FInorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation8%
H10KOrganic electric solid-state devices8%
Y02DClimate change mitigation technologies in information and communication technologies [ict], i.e. information and communication technologies aiming at the reduction of their own energy use8%
B41JTypewriters3%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h103%
PatentTitleYear
12,566,390Cartridge having detachable cap to cover opening of casing for replenishing toner into storage bag accommodated in casing202612,376,335Semiconductor device and manufacturing method thereof202512,271,126Image forming apparatus configured to perform cleaning operation for cleaning drum cleaning roller configured to collect toner on photosensitive drum202512,164,245Cartridge having detachable cap to cover opening of casing for replenishing toner into storage bag accommodated in casing202412,159,600Display device202412,138,934Image forming system, image forming apparatus, and bottle202412,111,587Developing unit having guide that stably supports toner cartridge202411,817,505Semiconductor device202311,790,866Display device202311,764,074Semiconductor device202311,698,595Developing unit having guide that stably supports toner cartridge202311,462,186Display device202211,271,115Semiconductor device202211,221,570Developing unit having guide that stably supports toner cartridge2022Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2022–2026Patents assigned to BROTHER IND LTD (7)· patent assignee history
2022–2025Patents assigned to SEMICONDUCTOR ENERGY LAB (7)· patent assignee history
2022–2026Based in JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BROTHER IND LTD | 7 | 2022–2026 |
| SEMICONDUCTOR ENERGY LAB | 7 | 2022–2025 |
Locations
| Location | Patents | Span |
|---|---|---|
| JP | 14 | 2022–2026 |