Inventor
Yoshikazu Akiyama
Inventor
Kanagawa, JP
Overview
Patents· 31 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B41Jprimary
B41JTypewriters18%
H10KOrganic electric solid-state devices13%
H10NElectric solid-state devices not otherwise provided for13%
H01LSemiconductor devices7%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution7%
Y02PClimate change mitigation technologies in the production or processing of goods7%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein5%
H10DInorganic electric semiconductor devices5%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%
Y10TTechnical subjects covered by former us classification4%
PatentTitleYear
9,950,524PZT-film laminated structure, liquid discharge head, liquid discharge device, liquid discharge apparatus, and method of making PZT-film laminated structure20189,834,853PZT precursor solution, method for producing PZT precursor solution, method for producing PZT film, method for producing electromechanical transducer element, and method for producing liquid discharge head20179,595,660'Method of manufacturing electromechanical transducer, electromechanical transducer, droplet discharge head, droplet discharge apparatus, and image forming apparatus'20179,583,270'Complex oxide, thin-film capacitive element, liquid droplet discharge head, and method of producing complex oxide'20179,401,471'Electromechanical transducing device and manufacturing method thereof, and liquid droplet discharging head and liquid droplet discharging apparatus'20168,960,866'Electromechanical transducer element, liquid discharge head, liquid discharge device, and image forming apparatus'20158,919,926'Inkjet head and inkjet plotter'20148,833,921'Thin-film forming apparatus, thin-film forming method, piezoelectric-element forming method, droplet discharging head, and ink-jet recording apparatus'20148,733,906'Electromechanical conversion element, liquid drop ejection head, liquid drop ejection device, and image forming apparatus'20148,727,505'Electromechanical transducer element, droplet discharge head, and droplet discharge device'20148,690,297'Sol-gel liquid, electromechanical conversion element, liquid discharge head and inkjet recorder'20148,646,180'Method for producing electromechanical transducer, electromechanical transducer produced by the method, liquid-droplet jetting head, and liquid-droplet jetting apparatus'20148,602,530'Ink-jet head and ink-jet recording apparatus'20138,454,133'Inkjet head, inkjet recording apparatus, liquid droplet ejecting apparatus, and image forming apparatus'20138,425,026'Electromechanical transducer film and method for manufacturing electromechanical transducer film'20138,071,432'Organic transistor active substrate, manufacturing method thereof, and electrophoretic display'20117,999,253'Organic transistor and active matrix display'20117,816,672'Wiring pattern, electronic device, organic semiconductor device, layered wiring pattern, and layered wiring substrate using the wiring pattern'20107,765,686'Multilayer wiring structure and method of manufacturing the same'20107,550,554'Aryl amine polymer, thin film transistor using the new aryl amine polymer, and method of manufacturing the thin film transistor'20097,422,964'Manufacturing method of the active matrix substrate, and an electro-optical apparatus having the active matrix substrate'20087,420,204'Organic transistor'20087,316,964'Active matrix substrate, a manufacturing method of the active matrix substrate'20087,166,689'Aryl amine polymer, thin film transistor using the aryl amine polymer, and method of manufacturing the thin film transistor'20077,126,153'Organic transistor'20066,874,898'THIN FILM APPARATUS, A MANUFACTURING METHOD OF THE THIN FILM APPARATUS, AN ACTIVE MATRIX SUBSTRATE, A MANUFACTURING METHOD OF THE ACTIVE MATRIX SUBSTRATE, AND AN ELECTRO-OPTICAL APPARATUS HAVING THE ACTIVE MATRIX SUBSTRATE'20056,721,654'Navigation system and memory medium storing the position data of the specific facilities'20045,729,262'Ink jet head including phase transition material actuators'19985,610,853'Ferroelectric material, and semiconductor memory, optical recording medium and micro-displacement control device using the ferroelectric material'19975,555,219'Ferroelectric material, and semiconductor memory, optical recording medium and micro-displacement control device using the ferroelectric material'19964,883,766'Method of producing thin film transistor'1989Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1989–2010Patents assigned to RICOH KK (13)· patent assignee history
1989–2009Based in Yokohama, JP· patent location history
2004–2010Based in Saitama-shi, JP· patent location history
2005–2018Based in Kanagawa, JP· patent location history
2011–2018Patents assigned to RICOH CO LTD (17)· patent assignee history
2011–2018Patents assigned to AKIYAMA YOSHIKAZU (16)· patent assignee history
2013–2018Patents assigned to MIZUKAMI SATOSHI (8)· patent assignee history
2013–2016Patents assigned to MACHIDA OSAMU (6)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| RICOH CO LTD | 17 | 2011–2018 |
| AKIYAMA YOSHIKAZUself | 16 | 2011–2018 |
| RICOH KK | 13 | 1989–2010 |
| MIZUKAMI SATOSHI | 8 | 2013–2018 |
| MACHIDA OSAMU | 6 | 2013–2016 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kanagawa, JP | 23 | 2005–2018 |
| Yokohama, JP | 6 | 1989–2009 |
| Saitama-shi, JP | 2 | 2004–2010 |