Yokowo has a total of 1881 patents globally, out of which 969 have been granted. Of these 1881 patents, more than 45% patents are active. The Japan is where Yokowo has filed the maximum number of patents, followed by China and United States of America. Parallelly, The Japan seems to be the main focused R&D center and also is the origin country of Yokowo.
Yokowo was founded in 1951. The Company manufactures and markets antennas for communication equipment. The Company’s products include antennas for car radio/phone, wireless equipment and circuit testing connectors. Company has overseas manufacturing subsidiaries in Taiwan, Malaysia and China.
Do read about some of the most popular patents of Yokowo which have been covered by us in this article and also you can find Yokowo patents information, the worldwide patent filing activity and its patent filing trend over the years, and many other stats over Yokowo patent portfolio.
How many patents does the Founder of Yokowo have?
The Founder Chutaro Yokoo has 0 patent.
How many patents does Yokowo have?
Yokowo has a total of 1881 patents globally. These patents belong to 839 unique patent families. Out of 1881 patents, 860 patents are active.
How Many Patents did Yokowo File Every Year?
Are you wondering why there is a drop in patent filing for the last two years? It is because a patent application can take up to 18 months to get published. Certainly, it doesn’t suggest a decrease in the patent filing.
| Year of Patents Filing or Grant | Yokowo Applications Filed | Yokowo Patents Granted |
| 2023 | 6 | 38 |
| 2022 | 77 | 87 |
| 2021 | 151 | 80 |
| 2020 | 101 | 45 |
| 2019 | 143 | 55 |
| 2018 | 175 | 47 |
| 2017 | 137 | 22 |
| 2016 | 44 | 25 |
| 2015 | 85 | 18 |
| 2014 | 35 | 24 |
| 2013 | 51 | 38 |
| 2012 | 35 | 32 |
How many Yokowo patents are Alive/Dead?
Worldwide Patents
How Many Patents did Yokowo File in Different Countries?
Countries in which Yokowo Filed Patents
| Country | Patents |
| Japan | 763 |
| China | 247 |
| United States Of America | 243 |
| Europe | 123 |
| Taiwan | 102 |
| Korea (South) | 46 |
| Germany | 44 |
| Malaysia | 13 |
| Austria | 13 |
| Canada | 4 |
| Singapore | 4 |
| Australia | 4 |
| Finland | 4 |
| United Kingdom | 3 |
| Mexico | 2 |
| Spain | 2 |
| Philippines | 2 |
| Viet Nam | 2 |
| Sweden | 2 |
| Brazil | 2 |
| Indonesia | 2 |
| Italy | 1 |
| India | 1 |
| Hong Kong (S.A.R.) | 1 |
Where are Research Centers of Yokowo Patents Located?
10 Best Yokowo Patents
US7274004B2 is the most popular patent in the Yokowo portfolio. It has received 165 citations so far from companies like Tokyo Electron Limited, Lam Research Corporation and Applied Materials.
Below is the list of 10 most cited patents of Yokowo:
| Publication Number | Citation Count |
| US7274004B2 | 165 |
| US6900647B2 | 121 |
| US7015710B2 | 118 |
| US6903563B2 | 112 |
| US7019701B2 | 98 |
| US20080088331A1 | 66 |
| US6937042B2 | 64 |
| US6919732B2 | 62 |
| US6917211B2 | 60 |
| US6666690B2 | 60 |
How many inventions of other companies were rejected due to Yokowo patents?
The statistics below share strategic R&D insights. It tells the companies that were trying to protect inventions similar to Yokowo invention. They couldn’t because Yokowo had protected those before them.
Examiners at the USPTO referred 73 Yokowo patents in 248 rejections (35 USC § 102 or 35 USC § 103 types).
The top citing companies in the Yokowo patent portfolio are Nhk Spring Company, Harada Industry and Samsung.
List of the Companies whose Patents were rejected citing Yokowo –
| Company | Number of Patent Applications that faced Rejection Citing Yokowo Patents | Number of Rejections (102 & 103) |
| Nhk Spring Company | 7 | 19 |
| Harada Industry | 6 | 12 |
| Samsung | 4 | 7 |
| Panasonic | 4 | 6 |
| Apple | 3 | 3 |
| Murata Manufacturing | 3 | 4 |
| Tsmc | 3 | 5 |
| Leeno Industrial | 3 | 3 |
| Smiths Interconnect Americas | 3 | 4 |
| Acer | 3 | 6 |
Count of 102 and 103 Type Rejections based on Yokowo Patents
Top Yokowo Patents used in Rejecting Most Patent Applications
| Patent Number | Count of Rejected Applications |
| US7420511B2 | 17 |
| US6953348B2 | 9 |
| US7420383B2 | 6 |
| US7456645B2 | 6 |
| US7274004B2 | 5 |
| US7804457B2 | 5 |
| US20110040357A1 | 4 |
| US6844748B2 | 4 |
| US7598921B2 | 4 |
| US9391390B2 | 4 |
| US7271773B2 | 4 |
| US7126362B2 | 4 |
| US7102373B2 | 3 |
| US10601123B2 | 3 |
| US6922172B2 | 2 |
What Percentage of Yokowo US Patent Applications were Granted?
Yokowo (Excluding its subsidiaries) has filed 220 patent applications at USPTO so far (Excluding Design and PCT applications). Out of these 164 have been granted leading to a grant rate of 90.61%.
Below are the key stats of Yokowo patent prosecution at the USPTO.
Which Law Firms Filed Most US Patents for Yokowo?
| Law Firm | Total Applications | Success Rate |
| Morgan Lewis & Bockius | 88 | 87.50% |
| Xsensus | 63 | 93.10% |
| Cpa Global | 8 | 100.00% |
| Oblon Mcclelland Maier & Neustadt | 7 | 100.00% |
| Birch Stewart Kolasch & Birch | 6 | 100.00% |
| Bachman & Lapointe | 5 | 100.00% |
| Leydig Voit & Mayer | 5 | 80.00% |
| Dernier Ip Law | 4 | 100.00% |
| Blakely Sokoloff Taylor & Zafman | 3 | 100.00% |
| Blank Rome | 3 | 100.00% |
What are Yokowo key innovation segments?
What Technologies are Covered by Yokowo?
The chart below distributes patents filed by Yokowo