Inventor
Masahiko Seki
Inventor
Chiba, JP
Overview
Patents· 29 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Dprimary
C07DHeterocyclic compounds12%
G06FElectric digital data processing7%
Y02PClimate change mitigation technologies in the production or processing of goods7%
C21CProcessing of pig-iron, e.g. refining, manufacture of wrought-iron or steel5%
F27DDetails or accessories of furnaces, kilns, ovens or retorts, in so far as they are of kinds occurring in more than one kind of furnace5%
G08BSignalling systems, e.g. personal calling systems5%
G11BInformation storage based on relative movement between record carrier and transducer5%
H04HBroadcast communication5%
H04LTransmission of digital information, e.g. telegraphic communication5%
H04NPictorial communication, e.g. television5%
PatentTitleYear
10,771,882User interface for an earbud device202010,689,349Method for producing intermediate of biotin and method for producing biotin202010,289,272Remote user interface for media player20199,624,181'Method for producing biaryl compound'20179,527,821'Deprotection method for tetrazole compound'20169,354,787'Remote user interface for media player'20168,880,675'Method and appartus for use in remote diagnostics'20148,635,325'Method and apparatus for use in remote diagnostics'20148,538,564'Remote user interface for media player'20138,530,506'Process for production of biphenyl derivative'20138,051,694'Method of and apparatus for manufacturing shaft'20117,984,121'Method and apparatus for use in remote diagnostics'20117,799,929'Biotin intermediate and process for preparing the same'20107,653,928'Remote user interface for media player'20107,439,368'Process for producing 3-acylaminobenzofuran-2-carboxylic acid derivative'20087,335,778'Intermediate for biotin and process for producing the same'20087,308,492'Method and apparatus for use in remote diagnostics'20076,524,763'Microcapsules containing a radiation sensitive composition and their use'20036,186,878'Apparatus relating to sanders'20015,831,091'Process for preparing acetoxyazetidinone derivative and intermediate thereof'19985,629,419'Process for preparing 4-mercaptopyrrolidine intermediate compounds and a process for their use in preparing carbapenem -2-em-3 carboxylic acids'19975,142,200'Method for driving a gas discharge display panel'19924,898,600'Apparatus for recovering high temperature blast furnace gas'19904,653,065'Preheating mechanism for use with duplex electric-arc furnace system'19874,583,230'Apparatus for induction heating of molten metal'19864,565,479'Raw materials charging device for preheating furnace'19864,387,884'Structure of oxygen passage in steel converter vessel supporting trunnion'19834,382,582'Air blast slag cut off device for steel converter'19834,325,540'Apparatus for supplying fluids to a converter'1982Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1982–1987Patents assigned to NIPPON STEEL CORP (6)· patent assignee history
1982–1987Based in Kitakyushu, JP· patent location history
1990–2020Based in Chiba, JP· patent location history
1992–2014Patents assigned to SEKI MASAHIKO (4)· patent assignee history
1997–2008Based in Nagaokakyo, JP· patent location history
2003–2017Based in Tokyo, JP· patent location history
2007–2020Patents assigned to SONY CORP (9)· patent assignee history
2007–2019Patents assigned to SONY ELECTRONICS INC (8)· patent assignee history
2007–2014Based in Matsudo, JP· patent location history
2008–2013Patents assigned to MITSUBISHI TANABE PHARMA CORP (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SONY CORP | 9 | 2007–2020 |
| SONY ELECTRONICS INC | 8 | 2007–2019 |
| NIPPON STEEL CORP | 6 | 1982–1987 |
| SEKI MASAHIKOself | 4 | 1992–2014 |
| MITSUBISHI TANABE PHARMA CORP | 3 | 2008–2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Chiba, JP | 5 | 1990–2020 |
| Matsudo, JP | 5 | 2007–2014 |
| Kitakyushu, JP | 5 | 1982–1987 |
| Tokyo, JP | 3 | 2003–2017 |
| Nagaokakyo, JP | 3 | 1997–2008 |