Inventor
Yasumitsu Yokoyama
Inventor
Miyagi, JP
Overview
Patents· 10 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B41Jprimary
B41JTypewriters47%
B41CProcesses for the manufacture or reproduction of printing surfaces41%
B41LApparatus or devices for manifolding, duplicating or printing for office or other commercial purposes12%
PatentTitleYear
7,444,933'Stencil printer'20086,836,276'Thermal master making device and thermal printer including the same'20046,786,146'Stencil printer'20046,747,682'Thermal master making device and thermal printer including the same'20046,664,992'Device for making a master'20036,130,697'Thermal master making device'20006,050,184'Thermal master making device and thermal recording device'20005,809,879'Control device for a thermosensitive stencil printer'19985,685,222'Control device for a thermosensitive stencil printer'19975,216,951'Thermal plate making apparatus'1993Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1993Patents assigned to RICOH KK (1)· patent assignee history
1993–2000Based in Kakuda, JP· patent location history
1997–2008Patents assigned to TOHOKU RIKO KK (9)· patent assignee history
2003–2008Based in Miyagi, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TOHOKU RIKO KK | 9 | 1997–2008 |
| RICOH KK | 1 | 1993 |
Locations
| Location | Patents | Span |
|---|---|---|
| Miyagi, JP | 5 | 2003–2008 |
| Kakuda, JP | 5 | 1993–2000 |