Inventor
Keizo Yamamoto
Inventor
Osaka, JP
Overview
Patents· 13 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Gprimary
G03GElectrography10%
A45DHairdressing or shaving equipment7%
A61HPhysical therapy apparatus, e.g. devices for locating or stimulating reflex points in the body7%
G04GElectronic time-pieces7%
H01QAntennas, i.e. radio aerials7%
H03KPulse technique7%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry3%
B26DCutting3%
B29CShaping or joining of plastics3%
B29DProducing particular articles from plastics or from substances in a plastic state3%
PatentTitleYear
10,791,813Automatic hair washing device202010,238,198Automatic hair washing device20196,592,788'Method of manufacturing a dielectric lens for an antenna'20036,292,139'Electronic part and a method of manufacturing the same'20016,251,661'Seamless capsule for synthesizing biopolymer and method for producing the same'20016,165,393'Production method of dielectric lens'20005,828,939'Smooth transfer sheet roller transport'19985,690,009'Roll sheet cutter mechanism for use in image forming apparatus'19975,651,539'Image forming apparatus with smooth transfer sheet roller transport'19975,534,735'Photo SI thyristor driving circuit and its protection circuit'19964,207,479'Touch sensitive switch arrangement with an I.sub.2 L structure'19804,131,864'Low voltage compensator for power supply in a complementary MOS transistor crystal oscillator circuit'19783,937,928'Embossed card reader'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1980Patents assigned to SHARP KK (3)· patent assignee history
1976–1980Based in Nara, JP· patent location history
1980Patents assigned to HYCOM INC (1)· patent assignee history
1997–1998Patents assigned to MITA INDUSTRIAL CO LTD (3)· patent assignee history
1997–2001Based in Osaka, JP· patent location history
2000–2003Patents assigned to MURATA MANUFACTURING CO (3)· patent assignee history
2001Based in Kitakatsuragi-gun, JP· patent location history
2003Based in Nagaokakyo, JP· patent location history
2019–2020Patents assigned to SERIX CO LTD (2)· patent assignee history
2019–2020Based in Kagawa, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MITA INDUSTRIAL CO LTD | 3 | 1997–1998 |
| MURATA MANUFACTURING CO | 3 | 2000–2003 |
| SHARP KK | 3 | 1976–1980 |
| SERIX CO LTD | 2 | 2019–2020 |
| HYCOM INC | 1 | 1980 |
Locations
| Location | Patents | Span |
|---|---|---|
| Osaka, JP | 5 | 1997–2001 |
| Nara, JP | 3 | 1976–1980 |
| Kagawa, JP | 2 | 2019–2020 |
| Nagaokakyo, JP | 1 | 2003 |
| Kitakatsuragi-gun, JP | 1 | 2001 |