LexDanaLexDanabeta
Inventor

Masao Nakayama

Inventor
Shiojiri, JP

Overview

82→
Patents
1994–2021
Patent span
Electricity
Primary field (CPC H)

Patents· 82 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

B41Jprimary
B41JTypewriters19%
H10NElectric solid-state devices not otherwise provided for15%
H01LSemiconductor devices7%
Y10TTechnical subjects covered by former us classification7%
H03GControl of amplification5%
H03FAmplifiers4%
H10DInorganic electric semiconductor devices4%
G07DHandling of coins or valuable papers, e.g. testing, sorting by denominations, counting, dispensing, changing or depositing3%
B22DCasting of metals2%
F01NGas-flow silencers or exhaust apparatus for machines or engines in general2%
PatentTitleYear
11,134,548Driving device202111,089,663Light-emitting element driving device202110,913,272Liquid ejecting head and liquid ejecting apparatus202110,850,515Liquid ejecting head and liquid ejecting apparatus202010,773,523Liquid discharge head, liquid discharge apparatus, and piezoelectric device202010,751,996Piezoelectric device, liquid ejecting head, and liquid ejecting apparatus202010,756,165High-frequency transistor202010,737,493Piezoelectric device, liquid ejecting head, and liquid ejecting apparatus202010,618,283Piezoelectric device, liquid discharge head, and liquid discharge apparatus202010,562,302Liquid ejecting head, liquid ejecting apparatus, and piezoelectric device202010,553,063Coin validation device202010,525,707Liquid ejecting head, liquid ejecting apparatus, and piezoelectric device202010,507,656Piezoelectric device, liquid ejecting head, and liquid ejecting apparatus201910,500,853Piezoelectric device, liquid ejecting head, and liquid ejecting apparatus201910,464,322Piezoelectric device, liquid ejecting head, and liquid ejecting apparatus201910,302,040Cylinder head for internal combustion engine201910,173,421Piezoelectric element, liquid ejecting head, and piezoelectric device201910,151,659Cylinder internal pressure sensor201810,089,813Bill processing device201810,071,343Electrically heated catalyst device and its manufacturing method201810,068,404Coin conveying device201810,055,924Bill processing device201810,001,101Fuel injection valve201810,000,061Piezoelectric device, liquid ejecting head, and liquid ejecting apparatus20189,969,162MEMS device, liquid ejecting head, and liquid ejecting apparatus20189,950,514Piezoelectric element, liquid ejecting head, and piezoelectric element device20189,842,453'Banknote processing device'20179,815,024'Electrically heated catalyst device and its manufacturing method'20179,770,907'MEMS device, liquid ejecting head, and liquid ejecting apparatus'20179,759,272'Clutch having a groove formed in an outer circumferential surface'20179,662,881'Liquid ejecting head'20179,553,251'Piezoelectric device, liquid ejecting head, liquid ejecting apparatus, and manufacturing method of piezoelectric device'20179,522,536'Piezoelectric device, liquid ejecting head, liquid ejecting apparatus and manufacturing method of piezoelectric device'20169,485,582'Speaker'20169,464,549'Electrically heated catalyst device and its manufacturing method'20169,283,757'Liquid ejecting head, liquid ejecting apparatus, piezoelectric element, and ultrasonic sensor'20168,870,352'Piezoelectric device and method for manufacturing the same, piezoelectric actuator, liquid ejecting head, and liquid ejecting apparatus'20148,801,152'Piezoelectric element, piezoelectric actuator, liquid ejecting head, liquid ejecting apparatus, and method for producing piezoelectric element'20148,770,727'Piezoelectric element, piezoelectric actuator, liquid ejecting head and liquid ejecting apparatus'20148,770,724'Piezoelectric element, liquid ejecting head, and liquid ejecting apparatus'20148,678,566'Piezoelectric element, method for manufacturing the same, piezoelectric actuator, liquid ejecting head, and liquid ejecting apparatus'20148,672,455'Piezoelectric element, piezoelectric actuator, droplet-ejecting head, droplet-ejecting apparatus, and method for manufacturing piezoelectric element'20148,585,184'Piezoelectric element, piezoelectric actuator, liquid ejecting head, and liquid ejecting apparatus'20138,567,918'Piezoelectric element, piezoelectric actuator, liquid ejecting head, liquid ejecting apparatus, and method for producing piezoelectric element'20138,342,660'Piezoelectric element, method for manufacturing the same, piezoelectric actuator, liquid ejecting head, and liquid ejecting apparatus'20138,305,730'Capacitor and its manufacturing method'20128,040,186'Radio frequency amplifier circuit and mobile communication terminal using the same'20117,924,098'High frequency amplifier circuit and mobile communication terminal using the same'20117,781,946'Piezoelectric element, ink jet recording head and ink jet printer'20107,662,724'Method of manufacturing a ferroelectric capacitor with a hydrogen barrier layer'20107,648,229'Liquid jet head and its manufacturing method'20107,639,080'Radio frequency amplifier circuit and mobile communication terminal using the same'20097,626,459'High frequency amplifier circuit and mobile communication terminal using the same'20097,560,854'Piezoelectric element and its manufacturing method'20097,548,408'Capacitor and its manufacturing method'20097,528,034'Method for forming ferroelectric capacitor, ferroelectric capacitor and electronic device'20097,466,537'Capacitor and its manufacturing method'20087,454,182'Attenuator with switch function and mobile telephone terminal device using the same'20087,425,872'Radio frequency power amplifier'20087,421,255'Transmission apparatus and mobile communication terminal apparatus'20087,340,229'High frequency amplification circuit and mobile communication terminal using the same'20087,245,895'Attenuator with switch function and mobile telephone terminal device using the same'20077,245,170'Attenuator and portable telephone terminal apparatus using the same'20077,239,205'High frequency amplifier circuit and mobile communication terminal using the same'20077,217,576'Method for manufacturing ferroelectric capacitor, method for manufacturing ferroelectric memory, ferroelectric capacitor and ferroelectric memory'20077,035,264'Communication network system and method for synchronously controlling path connection'20066,930,340'Memory cell array including ferroelectric capacitors, method for making the same, and ferroelectric memory device'20056,910,644'Solenoid-operated fuel injection valve'20056,853,235'High frequency switch, amplifying circuit, and mobile communication terminal'20056,852,362'Film vapor deposition method'20056,726,988'Magnetic recording medium'20046,553,031'Communication node apparatus with routing tables in cache memories'20036,208,023'Lead frame for use with an RF powered semiconductor'20015,994,144'Simplified environmental atmosphere measuring method'19995,985,213'Simplified environmental atmosphere measuring apparatus'19995,889,220'Copper-tungsten alloys and their manufacturing methods'1999D0396847'Semiconductor device'1998D0396846'Semiconductor device'19985,750,406'Environment monitoring test piece and test method'19985,620,041'Vacuum casting apparatus and method using flange-free stalk'19975,555,925'Vacuum casting apparatus using flange-free stalk'19965,355,934'Low pressure casting apparatus'1994

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1994–2019Patents assigned to TOYOTA MOTOR CO LTD (11)· patent assignee history
2005–2021Patents assigned to SEIKO EPSON CORP (39)· patent assignee history
2005–2008Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (7)· patent assignee history
2005–2011Based in Ritto, JP· patent location history
2005–2019Based in Nagoya, JP· patent location history
2005–2012Based in Chino, JP· patent location history
2008–2020Based in Shiga, JP· patent location history
2012–2018Patents assigned to NAKAYAMA MASAO (11)· patent assignee history
2013–2021Based in Shiojiri, JP· patent location history
2017–2020Patents assigned to FUJI ELECTRIC CO LTD (5)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SEIKO EPSON CORP392005–2021
NAKAYAMA MASAOself112012–2018
TOYOTA MOTOR CO LTD111994–2019
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD72005–2008
FUJI ELECTRIC CO LTD52017–2020
Locations
LocationPatentsSpan
Shiojiri, JP282013–2021
Ritto, JP92005–2011
Nagoya, JP82005–2019
Chino, JP82005–2012
Shiga, JP42008–2020